20511608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1181}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 41700960

約数和(自身を除く): 21189352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 167, 334, 668, 1181, 1336, 2171, 2362, 4342, 4724, 8684, 9448, 15353, 17368, 30706, 61412, 122824, 197227, 394454, 788908, 1577816, 2563951, 5127902, 10255804, 20511608]

約数ペア:

[(1, 20511608), (2, 10255804), (4, 5127902), (8, 2563951), (13, 1577816), (26, 788908), (52, 394454), (104, 197227), (167, 122824), (334, 61412), (668, 30706), (1181, 17368), (1336, 15353), (2171, 9448), (2362, 8684), (4342, 4724)]