21891636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1613}}^1$

素因数の和:1665

約数の個数: 72

約数和(自身を含む): 61687080

約数和(自身を除く): 39795444

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 1613, 2262, 3226, 3393, 4524, 4839, 6452, 6786, 9678, 13572, 14517, 19356, 20969, 29034, 41938, 46777, 58068, 62907, 83876, 93554, 125814, 140331, 187108, 188721, 251628, 280662, 377442, 420993, 561324, 608101, 754884, 841986, 1216202, 1683972, 1824303, 2432404, 3648606, 5472909, 7297212, 10945818, 21891636]

約数ペア:

[(1, 21891636), (2, 10945818), (3, 7297212), (4, 5472909), (6, 3648606), (9, 2432404), (12, 1824303), (13, 1683972), (18, 1216202), (26, 841986), (29, 754884), (36, 608101), (39, 561324), (52, 420993), (58, 377442), (78, 280662), (87, 251628), (116, 188721), (117, 187108), (156, 140331), (174, 125814), (234, 93554), (261, 83876), (348, 62907), (377, 58068), (468, 46777), (522, 41938), (754, 29034), (1044, 20969), (1131, 19356), (1508, 14517), (1613, 13572), (2262, 9678), (3226, 6786), (3393, 6452), (4524, 4839)]