20875764

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2765

約数の個数: 72

約数和(自身を含む): 61043808

約数和(自身を除く): 40168044

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2731, 3822, 5462, 7644, 8193, 10924, 16386, 19117, 32772, 35503, 38234, 57351, 71006, 76468, 106509, 114702, 133819, 142012, 213018, 229404, 248521, 267638, 401457, 426036, 497042, 535276, 745563, 802914, 994084, 1491126, 1605828, 1739647, 2982252, 3479294, 5218941, 6958588, 10437882, 20875764]

約数ペア:

[(1, 20875764), (2, 10437882), (3, 6958588), (4, 5218941), (6, 3479294), (7, 2982252), (12, 1739647), (13, 1605828), (14, 1491126), (21, 994084), (26, 802914), (28, 745563), (39, 535276), (42, 497042), (49, 426036), (52, 401457), (78, 267638), (84, 248521), (91, 229404), (98, 213018), (147, 142012), (156, 133819), (182, 114702), (196, 106509), (273, 76468), (294, 71006), (364, 57351), (546, 38234), (588, 35503), (637, 32772), (1092, 19117), (1274, 16386), (1911, 10924), (2548, 8193), (2731, 7644), (3822, 5462)]