21694996

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 38745000

約数和(自身を除く): 17050004

約数列:

[1, 2, 4, 89, 149, 178, 298, 356, 409, 596, 818, 1636, 13261, 26522, 36401, 53044, 60941, 72802, 121882, 145604, 243764, 5423749, 10847498, 21694996]

約数ペア:

[(1, 21694996), (2, 10847498), (4, 5423749), (89, 243764), (149, 145604), (178, 121882), (298, 72802), (356, 60941), (409, 53044), (596, 36401), (818, 26522), (1636, 13261)]