18838456

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 44049600

約数和(自身を除く): 25211144

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 113, 182, 226, 229, 364, 452, 458, 728, 791, 904, 916, 1469, 1582, 1603, 1832, 2938, 2977, 3164, 3206, 5876, 5954, 6328, 6412, 10283, 11752, 11908, 12824, 20566, 20839, 23816, 25877, 41132, 41678, 51754, 82264, 83356, 103508, 166712, 181139, 207016, 336401, 362278, 672802, 724556, 1345604, 1449112, 2354807, 2691208, 4709614, 9419228, 18838456]

約数ペア:

[(1, 18838456), (2, 9419228), (4, 4709614), (7, 2691208), (8, 2354807), (13, 1449112), (14, 1345604), (26, 724556), (28, 672802), (52, 362278), (56, 336401), (91, 207016), (104, 181139), (113, 166712), (182, 103508), (226, 83356), (229, 82264), (364, 51754), (452, 41678), (458, 41132), (728, 25877), (791, 23816), (904, 20839), (916, 20566), (1469, 12824), (1582, 11908), (1603, 11752), (1832, 10283), (2938, 6412), (2977, 6328), (3164, 5954), (3206, 5876)]