20870856

素因数分解:

$2^3\times 3^2\times {\mathrm{89}}^1\times {\mathrm{3257}}^1$

素因数の和:3358

約数の個数: 48

約数和(自身を含む): 57177900

約数和(自身を除く): 36307044

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 89, 178, 267, 356, 534, 712, 801, 1068, 1602, 2136, 3204, 3257, 6408, 6514, 9771, 13028, 19542, 26056, 29313, 39084, 58626, 78168, 117252, 234504, 289873, 579746, 869619, 1159492, 1739238, 2318984, 2608857, 3478476, 5217714, 6956952, 10435428, 20870856]

約数ペア:

[(1, 20870856), (2, 10435428), (3, 6956952), (4, 5217714), (6, 3478476), (8, 2608857), (9, 2318984), (12, 1739238), (18, 1159492), (24, 869619), (36, 579746), (72, 289873), (89, 234504), (178, 117252), (267, 78168), (356, 58626), (534, 39084), (712, 29313), (801, 26056), (1068, 19542), (1602, 13028), (2136, 9771), (3204, 6514), (3257, 6408)]