18697236464

素因数分解:

$2^4\times {\mathrm{1621}}^1\times {\mathrm{720899}}^1$

素因数の和:722528

約数の個数: 20

約数和(自身を含む): 36248293800

約数和(自身を除く): 17551057336

約数列:

[1, 2, 4, 8, 16, 1621, 3242, 6484, 12968, 25936, 720899, 1441798, 2883596, 5767192, 11534384, 1168577279, 2337154558, 4674309116, 9348618232, 18697236464]

約数ペア:

[(1, 18697236464), (2, 9348618232), (4, 4674309116), (8, 2337154558), (16, 1168577279), (1621, 11534384), (3242, 5767192), (6484, 2883596), (12968, 1441798), (25936, 720899)]