21020996872

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33261071}}^1$

素因数の和:33261156

約数の個数: 16

約数和(自身を含む): 39913286400

約数和(自身を除く): 18892289528

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33261071, 66522142, 133044284, 266088568, 2627624609, 5255249218, 10510498436, 21020996872]

約数ペア:

[(1, 21020996872), (2, 10510498436), (4, 5255249218), (8, 2627624609), (79, 266088568), (158, 133044284), (316, 66522142), (632, 33261071)]