20627432

素因数分解:

$2^3\times 7^2\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 45523620

約数和(自身を除く): 24896188

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 101, 196, 202, 392, 404, 521, 707, 808, 1042, 1414, 2084, 2828, 3647, 4168, 4949, 5656, 7294, 9898, 14588, 19796, 25529, 29176, 39592, 51058, 52621, 102116, 105242, 204232, 210484, 368347, 420968, 736694, 1473388, 2578429, 2946776, 5156858, 10313716, 20627432]

約数ペア:

[(1, 20627432), (2, 10313716), (4, 5156858), (7, 2946776), (8, 2578429), (14, 1473388), (28, 736694), (49, 420968), (56, 368347), (98, 210484), (101, 204232), (196, 105242), (202, 102116), (392, 52621), (404, 51058), (521, 39592), (707, 29176), (808, 25529), (1042, 19796), (1414, 14588), (2084, 9898), (2828, 7294), (3647, 5656), (4168, 4949)]