18786404

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 42163128

約数和(自身を除く): 23376724

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 73, 91, 98, 101, 146, 182, 196, 202, 292, 364, 404, 511, 637, 707, 949, 1022, 1274, 1313, 1414, 1898, 2044, 2548, 2626, 2828, 3577, 3796, 4949, 5252, 6643, 7154, 7373, 9191, 9898, 13286, 14308, 14746, 18382, 19796, 26572, 29492, 36764, 46501, 51611, 64337, 93002, 95849, 103222, 128674, 186004, 191698, 206444, 257348, 361277, 383396, 670943, 722554, 1341886, 1445108, 2683772, 4696601, 9393202, 18786404]

約数ペア:

[(1, 18786404), (2, 9393202), (4, 4696601), (7, 2683772), (13, 1445108), (14, 1341886), (26, 722554), (28, 670943), (49, 383396), (52, 361277), (73, 257348), (91, 206444), (98, 191698), (101, 186004), (146, 128674), (182, 103222), (196, 95849), (202, 93002), (292, 64337), (364, 51611), (404, 46501), (511, 36764), (637, 29492), (707, 26572), (949, 19796), (1022, 18382), (1274, 14746), (1313, 14308), (1414, 13286), (1898, 9898), (2044, 9191), (2548, 7373), (2626, 7154), (2828, 6643), (3577, 5252), (3796, 4949)]