21227164

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4651}}^1$

素因数の和:4825

約数の個数: 24

約数和(自身を含む): 42723968

約数和(自身を除く): 21496804

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 4651, 9302, 18604, 32557, 65114, 130228, 758113, 1516226, 3032452, 5306791, 10613582, 21227164]

約数ペア:

[(1, 21227164), (2, 10613582), (4, 5306791), (7, 3032452), (14, 1516226), (28, 758113), (163, 130228), (326, 65114), (652, 32557), (1141, 18604), (2282, 9302), (4564, 4651)]