20880886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1060

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 15487754

約数列:

[1, 2, 13, 19, 26, 38, 43, 86, 247, 494, 559, 817, 983, 1118, 1634, 1966, 10621, 12779, 18677, 21242, 25558, 37354, 42269, 84538, 242801, 485602, 549497, 803111, 1098994, 1606222, 10440443, 20880886]

約数ペア:

[(1, 20880886), (2, 10440443), (13, 1606222), (19, 1098994), (26, 803111), (38, 549497), (43, 485602), (86, 242801), (247, 84538), (494, 42269), (559, 37354), (817, 25558), (983, 21242), (1118, 18677), (1634, 12779), (1966, 10621)]