21571308

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 64995840

約数和(自身を除く): 43424532

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 47, 57, 61, 66, 76, 94, 99, 114, 122, 132, 141, 171, 183, 188, 198, 209, 228, 244, 282, 342, 366, 396, 418, 423, 517, 549, 564, 627, 671, 684, 732, 836, 846, 893, 1034, 1098, 1159, 1254, 1342, 1551, 1692, 1786, 1881, 2013, 2068, 2196, 2318, 2508, 2679, 2684, 2867, 3102, 3477, 3572, 3762, 4026, 4636, 4653, 5358, 5734, 6039, 6204, 6954, 7524, 8037, 8052, 8601, 9306, 9823, 10431, 10716, 11468, 12078, 12749, 13908, 16074, 17202, 18612, 19646, 20862, 24156, 25498, 25803, 29469, 31537, 32148, 34404, 38247, 39292, 41724, 50996, 51606, 54473, 58938, 63074, 76494, 88407, 94611, 103212, 108946, 114741, 117876, 126148, 152988, 163419, 176814, 189222, 217892, 229482, 283833, 326838, 353628, 378444, 458964, 490257, 567666, 599203, 653676, 980514, 1135332, 1198406, 1797609, 1961028, 2396812, 3595218, 5392827, 7190436, 10785654, 21571308]

約数ペア:

[(1, 21571308), (2, 10785654), (3, 7190436), (4, 5392827), (6, 3595218), (9, 2396812), (11, 1961028), (12, 1797609), (18, 1198406), (19, 1135332), (22, 980514), (33, 653676), (36, 599203), (38, 567666), (44, 490257), (47, 458964), (57, 378444), (61, 353628), (66, 326838), (76, 283833), (94, 229482), (99, 217892), (114, 189222), (122, 176814), (132, 163419), (141, 152988), (171, 126148), (183, 117876), (188, 114741), (198, 108946), (209, 103212), (228, 94611), (244, 88407), (282, 76494), (342, 63074), (366, 58938), (396, 54473), (418, 51606), (423, 50996), (517, 41724), (549, 39292), (564, 38247), (627, 34404), (671, 32148), (684, 31537), (732, 29469), (836, 25803), (846, 25498), (893, 24156), (1034, 20862), (1098, 19646), (1159, 18612), (1254, 17202), (1342, 16074), (1551, 13908), (1692, 12749), (1786, 12078), (1881, 11468), (2013, 10716), (2068, 10431), (2196, 9823), (2318, 9306), (2508, 8601), (2679, 8052), (2684, 8037), (2867, 7524), (3102, 6954), (3477, 6204), (3572, 6039), (3762, 5734), (4026, 5358), (4636, 4653)]