20661392

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2053}}^1$

素因数の和:2115

約数の個数: 40

約数和(自身を含む): 43553016

約数和(自身を除く): 22891624

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 136, 148, 272, 296, 592, 629, 1258, 2053, 2516, 4106, 5032, 8212, 10064, 16424, 32848, 34901, 69802, 75961, 139604, 151922, 279208, 303844, 558416, 607688, 1215376, 1291337, 2582674, 5165348, 10330696, 20661392]

約数ペア:

[(1, 20661392), (2, 10330696), (4, 5165348), (8, 2582674), (16, 1291337), (17, 1215376), (34, 607688), (37, 558416), (68, 303844), (74, 279208), (136, 151922), (148, 139604), (272, 75961), (296, 69802), (592, 34901), (629, 32848), (1258, 16424), (2053, 10064), (2516, 8212), (4106, 5032)]