21867508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 45193680

約数和(自身を除く): 23326172

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 853, 884, 986, 1508, 1706, 1972, 3412, 6409, 11089, 12818, 14501, 22178, 24737, 25636, 29002, 44356, 49474, 58004, 98948, 188513, 321581, 377026, 420529, 643162, 754052, 841058, 1286324, 1682116, 5466877, 10933754, 21867508]

約数ペア:

[(1, 21867508), (2, 10933754), (4, 5466877), (13, 1682116), (17, 1286324), (26, 841058), (29, 754052), (34, 643162), (52, 420529), (58, 377026), (68, 321581), (116, 188513), (221, 98948), (377, 58004), (442, 49474), (493, 44356), (754, 29002), (853, 25636), (884, 24737), (986, 22178), (1508, 14501), (1706, 12818), (1972, 11089), (3412, 6409)]