398143963

素因数分解:

$7^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 472634880

約数和(自身を除く): 74490917

約数列:

[1, 7, 49, 79, 163, 553, 631, 1141, 3871, 4417, 7987, 12877, 30919, 49849, 90139, 102853, 348943, 630973, 719971, 2442601, 5039797, 8125387, 56877709, 398143963]

約数ペア:

[(1, 398143963), (7, 56877709), (49, 8125387), (79, 5039797), (163, 2442601), (553, 719971), (631, 630973), (1141, 348943), (3871, 102853), (4417, 90139), (7987, 49849), (12877, 30919)]