21151956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251809}}^1$

素因数の和:251823

約数の個数: 24

約数和(自身を含む): 56405440

約数和(自身を除く): 35253484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251809, 503618, 755427, 1007236, 1510854, 1762663, 3021708, 3525326, 5287989, 7050652, 10575978, 21151956]

約数ペア:

[(1, 21151956), (2, 10575978), (3, 7050652), (4, 5287989), (6, 3525326), (7, 3021708), (12, 1762663), (14, 1510854), (21, 1007236), (28, 755427), (42, 503618), (84, 251809)]