21029866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 39019680

約数和(自身を除く): 17989814

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 139, 143, 253, 278, 286, 299, 506, 529, 598, 1058, 1529, 1807, 3058, 3197, 3289, 3614, 5819, 6394, 6578, 6877, 11638, 13754, 19877, 35167, 39754, 41561, 70334, 73531, 75647, 83122, 147062, 151294, 457171, 808841, 914342, 955903, 1617682, 1911806, 10514933, 21029866]

約数ペア:

[(1, 21029866), (2, 10514933), (11, 1911806), (13, 1617682), (22, 955903), (23, 914342), (26, 808841), (46, 457171), (139, 151294), (143, 147062), (253, 83122), (278, 75647), (286, 73531), (299, 70334), (506, 41561), (529, 39754), (598, 35167), (1058, 19877), (1529, 13754), (1807, 11638), (3058, 6877), (3197, 6578), (3289, 6394), (3614, 5819)]