397236868

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{87037}}^1$

素因数の和:87211

約数の個数: 24

約数和(自身を含む): 799356992

約数和(自身を除く): 402120124

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 87037, 174074, 348148, 609259, 1218518, 2437036, 14187031, 28374062, 56748124, 99309217, 198618434, 397236868]

約数ペア:

[(1, 397236868), (2, 198618434), (4, 99309217), (7, 56748124), (14, 28374062), (28, 14187031), (163, 2437036), (326, 1218518), (652, 609259), (1141, 348148), (2282, 174074), (4564, 87037)]