2021118885

素因数分解:

$3^4\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{4591}}^1$

素因数の和:5695

約数の個数: 40

約数和(自身を含む): 3627165696

約数和(自身を除く): 1606046811

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1087, 3261, 4591, 5435, 9783, 13773, 16305, 22955, 29349, 41319, 48915, 68865, 88047, 123957, 146745, 206595, 371871, 440235, 619785, 1859355, 4990417, 14971251, 24952085, 44913753, 74856255, 134741259, 224568765, 404223777, 673706295, 2021118885]

約数ペア:

[(1, 2021118885), (3, 673706295), (5, 404223777), (9, 224568765), (15, 134741259), (27, 74856255), (45, 44913753), (81, 24952085), (135, 14971251), (405, 4990417), (1087, 1859355), (3261, 619785), (4591, 440235), (5435, 371871), (9783, 206595), (13773, 146745), (16305, 123957), (22955, 88047), (29349, 68865), (41319, 48915)]