81878781

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 119070720

約数和(自身を除く): 37191939

約数列:

[1, 3, 23, 31, 69, 93, 101, 303, 379, 713, 1137, 2139, 2323, 3131, 6969, 8717, 9393, 11749, 26151, 35247, 38279, 72013, 114837, 216039, 270227, 810681, 880417, 1186649, 2641251, 3559947, 27292927, 81878781]

約数ペア:

[(1, 81878781), (3, 27292927), (23, 3559947), (31, 2641251), (69, 1186649), (93, 880417), (101, 810681), (303, 270227), (379, 216039), (713, 114837), (1137, 72013), (2139, 38279), (2323, 35247), (3131, 26151), (6969, 11749), (8717, 9393)]