20921334728

素因数分解:

$2^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3698963}}^1$

素因数の和:3699077

約数の個数: 32

約数和(自身を含む): 45275319360

約数和(自身を除く): 24353984632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 101, 202, 404, 707, 808, 1414, 2828, 5656, 3698963, 7397926, 14795852, 25892741, 29591704, 51785482, 103570964, 207141928, 373595263, 747190526, 1494381052, 2615166841, 2988762104, 5230333682, 10460667364, 20921334728]

約数ペア:

[(1, 20921334728), (2, 10460667364), (4, 5230333682), (7, 2988762104), (8, 2615166841), (14, 1494381052), (28, 747190526), (56, 373595263), (101, 207141928), (202, 103570964), (404, 51785482), (707, 29591704), (808, 25892741), (1414, 14795852), (2828, 7397926), (5656, 3698963)]