21307544

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{929}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 41515200

約数和(自身を除く): 20207656

約数列:

[1, 2, 4, 8, 47, 61, 94, 122, 188, 244, 376, 488, 929, 1858, 2867, 3716, 5734, 7432, 11468, 22936, 43663, 56669, 87326, 113338, 174652, 226676, 349304, 453352, 2663443, 5326886, 10653772, 21307544]

約数ペア:

[(1, 21307544), (2, 10653772), (4, 5326886), (8, 2663443), (47, 453352), (61, 349304), (94, 226676), (122, 174652), (188, 113338), (244, 87326), (376, 56669), (488, 43663), (929, 22936), (1858, 11468), (2867, 7432), (3716, 5734)]