21621676

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 38641680

約数和(自身を除く): 17020004

約数列:

[1, 2, 4, 101, 109, 202, 218, 404, 436, 491, 982, 1964, 11009, 22018, 44036, 49591, 53519, 99182, 107038, 198364, 214076, 5405419, 10810838, 21621676]

約数ペア:

[(1, 21621676), (2, 10810838), (4, 5405419), (101, 214076), (109, 198364), (202, 107038), (218, 99182), (404, 53519), (436, 49591), (491, 44036), (982, 22018), (1964, 11009)]