21222306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3917}}^1$

素因数の和:3975

約数の個数: 48

約数和(自身を含む): 53786304

約数和(自身を除く): 32563998

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3917, 5418, 7834, 11751, 23502, 27419, 35253, 54838, 70506, 82257, 164514, 168431, 246771, 336862, 493542, 505293, 1010586, 1179017, 1515879, 2358034, 3031758, 3537051, 7074102, 10611153, 21222306]

約数ペア:

[(1, 21222306), (2, 10611153), (3, 7074102), (6, 3537051), (7, 3031758), (9, 2358034), (14, 1515879), (18, 1179017), (21, 1010586), (42, 505293), (43, 493542), (63, 336862), (86, 246771), (126, 168431), (129, 164514), (258, 82257), (301, 70506), (387, 54838), (602, 35253), (774, 27419), (903, 23502), (1806, 11751), (2709, 7834), (3917, 5418)]