18885916

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 39223296

約数和(自身を除く): 20337380

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 113, 127, 188, 226, 254, 329, 452, 508, 658, 791, 889, 1316, 1582, 1778, 3164, 3556, 5311, 5969, 10622, 11938, 14351, 21244, 23876, 28702, 37177, 41783, 57404, 74354, 83566, 100457, 148708, 167132, 200914, 401828, 674497, 1348994, 2697988, 4721479, 9442958, 18885916]

約数ペア:

[(1, 18885916), (2, 9442958), (4, 4721479), (7, 2697988), (14, 1348994), (28, 674497), (47, 401828), (94, 200914), (113, 167132), (127, 148708), (188, 100457), (226, 83566), (254, 74354), (329, 57404), (452, 41783), (508, 37177), (658, 28702), (791, 23876), (889, 21244), (1316, 14351), (1582, 11938), (1778, 10622), (3164, 5969), (3556, 5311)]