18795028

素因数分解:

$2^2\times 7^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 60

約数和(自身を含む): 40782560

約数和(自身を除く): 21987532

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 103, 133, 196, 206, 266, 343, 412, 532, 686, 721, 931, 1372, 1442, 1862, 1957, 2401, 2884, 3724, 3914, 4802, 5047, 6517, 7828, 9604, 10094, 13034, 13699, 20188, 26068, 27398, 35329, 45619, 54796, 70658, 91238, 95893, 141316, 182476, 191786, 247303, 383572, 494606, 671251, 989212, 1342502, 2685004, 4698757, 9397514, 18795028]

約数ペア:

[(1, 18795028), (2, 9397514), (4, 4698757), (7, 2685004), (14, 1342502), (19, 989212), (28, 671251), (38, 494606), (49, 383572), (76, 247303), (98, 191786), (103, 182476), (133, 141316), (196, 95893), (206, 91238), (266, 70658), (343, 54796), (412, 45619), (532, 35329), (686, 27398), (721, 26068), (931, 20188), (1372, 13699), (1442, 13034), (1862, 10094), (1957, 9604), (2401, 7828), (2884, 6517), (3724, 5047), (3914, 4802)]