20421108

素因数分解:

$2^2\times 3^2\times {\mathrm{599}}^1\times {\mathrm{947}}^1$

素因数の和:1556

約数の個数: 36

約数和(自身を含む): 51760800

約数和(自身を除く): 31339692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 599, 947, 1198, 1797, 1894, 2396, 2841, 3594, 3788, 5391, 5682, 7188, 8523, 10782, 11364, 17046, 21564, 34092, 567253, 1134506, 1701759, 2269012, 3403518, 5105277, 6807036, 10210554, 20421108]

約数ペア:

[(1, 20421108), (2, 10210554), (3, 6807036), (4, 5105277), (6, 3403518), (9, 2269012), (12, 1701759), (18, 1134506), (36, 567253), (599, 34092), (947, 21564), (1198, 17046), (1797, 11364), (1894, 10782), (2396, 8523), (2841, 7188), (3594, 5682), (3788, 5391)]