20992456

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1801}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 41518080

約数和(自身を除く): 20525624

約数列:

[1, 2, 4, 8, 31, 47, 62, 94, 124, 188, 248, 376, 1457, 1801, 2914, 3602, 5828, 7204, 11656, 14408, 55831, 84647, 111662, 169294, 223324, 338588, 446648, 677176, 2624057, 5248114, 10496228, 20992456]

約数ペア:

[(1, 20992456), (2, 10496228), (4, 5248114), (8, 2624057), (31, 677176), (47, 446648), (62, 338588), (94, 223324), (124, 169294), (188, 111662), (248, 84647), (376, 55831), (1457, 14408), (1801, 11656), (2914, 7204), (3602, 5828)]