21591710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13411}}^1$

素因数の和:13448

約数の個数: 32

約数和(自身を含む): 46351872

約数和(自身を除く): 24760162

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13411, 26822, 67055, 93877, 134110, 187754, 308453, 469385, 616906, 938770, 1542265, 2159171, 3084530, 4318342, 10795855, 21591710]

約数ペア:

[(1, 21591710), (2, 10795855), (5, 4318342), (7, 3084530), (10, 2159171), (14, 1542265), (23, 938770), (35, 616906), (46, 469385), (70, 308453), (115, 187754), (161, 134110), (230, 93877), (322, 67055), (805, 26822), (1610, 13411)]