21089130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9901}}^1$

素因数の和:9982

約数の個数: 32

約数和(自身を含む): 51331968

約数和(自身を除く): 30242838

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 9901, 19802, 29703, 49505, 59406, 99010, 148515, 297030, 702971, 1405942, 2108913, 3514855, 4217826, 7029710, 10544565, 21089130]

約数ペア:

[(1, 21089130), (2, 10544565), (3, 7029710), (5, 4217826), (6, 3514855), (10, 2108913), (15, 1405942), (30, 702971), (71, 297030), (142, 148515), (213, 99010), (355, 59406), (426, 49505), (710, 29703), (1065, 19802), (2130, 9901)]