21419639968

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^2$

素因数の和:375

約数の個数: 144

約数和(自身を含む): 46749830400

約数和(自身を除く): 25330190432

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 89, 113, 124, 152, 178, 226, 248, 304, 356, 452, 496, 589, 608, 712, 904, 992, 1178, 1424, 1691, 1808, 2147, 2356, 2759, 2848, 3382, 3503, 3616, 4294, 4712, 5518, 6764, 7006, 8588, 9424, 10057, 11036, 12769, 13528, 14012, 17176, 18848, 20114, 22072, 25538, 27056, 28024, 34352, 40228, 44144, 51076, 52421, 54112, 56048, 66557, 68704, 80456, 88288, 102152, 104842, 112096, 133114, 160912, 191083, 204304, 209684, 242611, 266228, 311767, 321824, 382166, 395839, 408608, 419368, 485222, 532456, 623534, 764332, 791678, 838736, 970444, 1064912, 1136441, 1247068, 1528664, 1583356, 1677472, 1940888, 2129824, 2272882, 2494136, 3057328, 3166712, 3881776, 4545764, 4988272, 5923573, 6114656, 6333424, 7520941, 7763552, 9091528, 9976544, 11847146, 12666848, 15041882, 18183056, 21592379, 23694292, 30083764, 35229671, 36366112, 43184758, 47388584, 60167528, 70459342, 86369516, 94777168, 120335056, 140918684, 172739032, 189554336, 240670112, 281837368, 345478064, 563674736, 669363749, 690956128, 1127349472, 1338727498, 2677454996, 5354909992, 10709819984, 21419639968]

約数ペア:

[(1, 21419639968), (2, 10709819984), (4, 5354909992), (8, 2677454996), (16, 1338727498), (19, 1127349472), (31, 690956128), (32, 669363749), (38, 563674736), (62, 345478064), (76, 281837368), (89, 240670112), (113, 189554336), (124, 172739032), (152, 140918684), (178, 120335056), (226, 94777168), (248, 86369516), (304, 70459342), (356, 60167528), (452, 47388584), (496, 43184758), (589, 36366112), (608, 35229671), (712, 30083764), (904, 23694292), (992, 21592379), (1178, 18183056), (1424, 15041882), (1691, 12666848), (1808, 11847146), (2147, 9976544), (2356, 9091528), (2759, 7763552), (2848, 7520941), (3382, 6333424), (3503, 6114656), (3616, 5923573), (4294, 4988272), (4712, 4545764), (5518, 3881776), (6764, 3166712), (7006, 3057328), (8588, 2494136), (9424, 2272882), (10057, 2129824), (11036, 1940888), (12769, 1677472), (13528, 1583356), (14012, 1528664), (17176, 1247068), (18848, 1136441), (20114, 1064912), (22072, 970444), (25538, 838736), (27056, 791678), (28024, 764332), (34352, 623534), (40228, 532456), (44144, 485222), (51076, 419368), (52421, 408608), (54112, 395839), (56048, 382166), (66557, 321824), (68704, 311767), (80456, 266228), (88288, 242611), (102152, 209684), (104842, 204304), (112096, 191083), (133114, 160912)]