21878964

素因数分解:

$2^2\times 3^3\times {\mathrm{173}}^1\times {\mathrm{1171}}^1$

素因数の和:1357

約数の個数: 48

約数和(自身を含む): 57099840

約数和(自身を除く): 35220876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 173, 346, 519, 692, 1038, 1171, 1557, 2076, 2342, 3114, 3513, 4671, 4684, 6228, 7026, 9342, 10539, 14052, 18684, 21078, 31617, 42156, 63234, 126468, 202583, 405166, 607749, 810332, 1215498, 1823247, 2430996, 3646494, 5469741, 7292988, 10939482, 21878964]

約数ペア:

[(1, 21878964), (2, 10939482), (3, 7292988), (4, 5469741), (6, 3646494), (9, 2430996), (12, 1823247), (18, 1215498), (27, 810332), (36, 607749), (54, 405166), (108, 202583), (173, 126468), (346, 63234), (519, 42156), (692, 31617), (1038, 21078), (1171, 18684), (1557, 14052), (2076, 10539), (2342, 9342), (3114, 7026), (3513, 6228), (4671, 4684)]