21292278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4651}}^1$

素因数の和:4772

約数の個数: 32

約数和(自身を含む): 49125120

約数和(自身を除く): 27832842

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 109, 218, 327, 654, 763, 1526, 2289, 4578, 4651, 9302, 13953, 27906, 32557, 65114, 97671, 195342, 506959, 1013918, 1520877, 3041754, 3548713, 7097426, 10646139, 21292278]

約数ペア:

[(1, 21292278), (2, 10646139), (3, 7097426), (6, 3548713), (7, 3041754), (14, 1520877), (21, 1013918), (42, 506959), (109, 195342), (218, 97671), (327, 65114), (654, 32557), (763, 27906), (1526, 13953), (2289, 9302), (4578, 4651)]