19873460

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1621}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 41828136

約数和(自身を除く): 21954676

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 1621, 2452, 3065, 3242, 6130, 6484, 8105, 12260, 16210, 32420, 993673, 1987346, 3974692, 4968365, 9936730, 19873460]

約数ペア:

[(1, 19873460), (2, 9936730), (4, 4968365), (5, 3974692), (10, 1987346), (20, 993673), (613, 32420), (1226, 16210), (1621, 12260), (2452, 8105), (3065, 6484), (3242, 6130)]