20673748

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 38831520

約数和(自身を除く): 18157772

約数列:

[1, 2, 4, 19, 38, 76, 103, 139, 206, 278, 361, 412, 556, 722, 1444, 1957, 2641, 3914, 5282, 7828, 10564, 14317, 28634, 37183, 50179, 57268, 74366, 100358, 148732, 200716, 272023, 544046, 1088092, 5168437, 10336874, 20673748]

約数ペア:

[(1, 20673748), (2, 10336874), (4, 5168437), (19, 1088092), (38, 544046), (76, 272023), (103, 200716), (139, 148732), (206, 100358), (278, 74366), (361, 57268), (412, 50179), (556, 37183), (722, 28634), (1444, 14317), (1957, 10564), (2641, 7828), (3914, 5282)]