20921736

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 62092800

約数和(自身を除く): 41171064

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 38, 43, 44, 57, 66, 76, 86, 88, 97, 114, 129, 132, 152, 172, 194, 209, 228, 258, 264, 291, 344, 388, 418, 456, 473, 516, 582, 627, 776, 817, 836, 946, 1032, 1067, 1164, 1254, 1419, 1634, 1672, 1843, 1892, 2134, 2328, 2451, 2508, 2838, 3201, 3268, 3686, 3784, 4171, 4268, 4902, 5016, 5529, 5676, 6402, 6536, 7372, 8342, 8536, 8987, 9804, 11058, 11352, 12513, 12804, 14744, 16684, 17974, 19608, 20273, 22116, 25026, 25608, 26961, 33368, 35948, 40546, 44232, 45881, 50052, 53922, 60819, 71896, 79249, 81092, 91762, 100104, 107844, 121638, 137643, 158498, 162184, 183524, 215688, 237747, 243276, 275286, 316996, 367048, 475494, 486552, 550572, 633992, 871739, 950988, 1101144, 1743478, 1901976, 2615217, 3486956, 5230434, 6973912, 10460868, 20921736]

約数ペア:

[(1, 20921736), (2, 10460868), (3, 6973912), (4, 5230434), (6, 3486956), (8, 2615217), (11, 1901976), (12, 1743478), (19, 1101144), (22, 950988), (24, 871739), (33, 633992), (38, 550572), (43, 486552), (44, 475494), (57, 367048), (66, 316996), (76, 275286), (86, 243276), (88, 237747), (97, 215688), (114, 183524), (129, 162184), (132, 158498), (152, 137643), (172, 121638), (194, 107844), (209, 100104), (228, 91762), (258, 81092), (264, 79249), (291, 71896), (344, 60819), (388, 53922), (418, 50052), (456, 45881), (473, 44232), (516, 40546), (582, 35948), (627, 33368), (776, 26961), (817, 25608), (836, 25026), (946, 22116), (1032, 20273), (1067, 19608), (1164, 17974), (1254, 16684), (1419, 14744), (1634, 12804), (1672, 12513), (1843, 11352), (1892, 11058), (2134, 9804), (2328, 8987), (2451, 8536), (2508, 8342), (2838, 7372), (3201, 6536), (3268, 6402), (3686, 5676), (3784, 5529), (4171, 5016), (4268, 4902)]