21148510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4013}}^1$

素因数の和:4068

約数の個数: 32

約数和(自身を含む): 41617152

約数和(自身を除く): 20468642

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 4013, 5270, 8026, 20065, 40130, 68221, 124403, 136442, 248806, 341105, 622015, 682210, 1244030, 2114851, 4229702, 10574255, 21148510]

約数ペア:

[(1, 21148510), (2, 10574255), (5, 4229702), (10, 2114851), (17, 1244030), (31, 682210), (34, 622015), (62, 341105), (85, 248806), (155, 136442), (170, 124403), (310, 68221), (527, 40130), (1054, 20065), (2635, 8026), (4013, 5270)]