21410870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1511}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20501770

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1511, 2834, 3022, 7085, 7555, 14170, 15110, 19643, 39286, 98215, 164699, 196430, 329398, 823495, 1646990, 2141087, 4282174, 10705435, 21410870]

約数ペア:

[(1, 21410870), (2, 10705435), (5, 4282174), (10, 2141087), (13, 1646990), (26, 823495), (65, 329398), (109, 196430), (130, 164699), (218, 98215), (545, 39286), (1090, 19643), (1417, 15110), (1511, 14170), (2834, 7555), (3022, 7085)]