20653956

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{8563}}^1$

素因数の和:8640

約数の個数: 36

約数和(自身を含む): 52994032

約数和(自身を除く): 32340076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 268, 402, 603, 804, 1206, 2412, 8563, 17126, 25689, 34252, 51378, 77067, 102756, 154134, 308268, 573721, 1147442, 1721163, 2294884, 3442326, 5163489, 6884652, 10326978, 20653956]

約数ペア:

[(1, 20653956), (2, 10326978), (3, 6884652), (4, 5163489), (6, 3442326), (9, 2294884), (12, 1721163), (18, 1147442), (36, 573721), (67, 308268), (134, 154134), (201, 102756), (268, 77067), (402, 51378), (603, 34252), (804, 25689), (1206, 17126), (2412, 8563)]