21740474

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 39315456

約数和(自身を除く): 17574982

約数列:

[1, 2, 7, 14, 23, 46, 107, 161, 214, 322, 631, 749, 1262, 1498, 2461, 4417, 4922, 8834, 14513, 17227, 29026, 34454, 67517, 101591, 135034, 203182, 472619, 945238, 1552891, 3105782, 10870237, 21740474]

約数ペア:

[(1, 21740474), (2, 10870237), (7, 3105782), (14, 1552891), (23, 945238), (46, 472619), (107, 203182), (161, 135034), (214, 101591), (322, 67517), (631, 34454), (749, 29026), (1262, 17227), (1498, 14513), (2461, 8834), (4417, 4922)]