21052724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2357}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 47537280

約数和(自身を除く): 26484556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 58, 77, 116, 154, 203, 308, 319, 406, 638, 812, 1276, 2233, 2357, 4466, 4714, 8932, 9428, 16499, 25927, 32998, 51854, 65996, 68353, 103708, 136706, 181489, 273412, 362978, 478471, 725956, 751883, 956942, 1503766, 1913884, 3007532, 5263181, 10526362, 21052724]

約数ペア:

[(1, 21052724), (2, 10526362), (4, 5263181), (7, 3007532), (11, 1913884), (14, 1503766), (22, 956942), (28, 751883), (29, 725956), (44, 478471), (58, 362978), (77, 273412), (116, 181489), (154, 136706), (203, 103708), (308, 68353), (319, 65996), (406, 51854), (638, 32998), (812, 25927), (1276, 16499), (2233, 9428), (2357, 8932), (4466, 4714)]