21082030

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1392

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 19104338

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1291, 1633, 2582, 3266, 6455, 8165, 12910, 16330, 29693, 59386, 91661, 148465, 183322, 296930, 458305, 916610, 2108203, 4216406, 10541015, 21082030]

約数ペア:

[(1, 21082030), (2, 10541015), (5, 4216406), (10, 2108203), (23, 916610), (46, 458305), (71, 296930), (115, 183322), (142, 148465), (230, 91661), (355, 59386), (710, 29693), (1291, 16330), (1633, 12910), (2582, 8165), (3266, 6455)]