21310690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1871}}^1$

素因数の和:1962

約数の個数: 32

約数和(自身を含む): 41243904

約数和(自身を除く): 19933214

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 1871, 2278, 3742, 5695, 9355, 11390, 18710, 31807, 63614, 125357, 159035, 250714, 318070, 626785, 1253570, 2131069, 4262138, 10655345, 21310690]

約数ペア:

[(1, 21310690), (2, 10655345), (5, 4262138), (10, 2131069), (17, 1253570), (34, 626785), (67, 318070), (85, 250714), (134, 159035), (170, 125357), (335, 63614), (670, 31807), (1139, 18710), (1871, 11390), (2278, 9355), (3742, 5695)]