20529705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4547}}^1$

素因数の和:4605

約数の個数: 32

約数和(自身を含む): 38421504

約数和(自身を除く): 17891799

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 4547, 13641, 22735, 31829, 68205, 95487, 159145, 195521, 477435, 586563, 977605, 1368647, 2932815, 4105941, 6843235, 20529705]

約数ペア:

[(1, 20529705), (3, 6843235), (5, 4105941), (7, 2932815), (15, 1368647), (21, 977605), (35, 586563), (43, 477435), (105, 195521), (129, 159145), (215, 95487), (301, 68205), (645, 31829), (903, 22735), (1505, 13641), (4515, 4547)]