15721212387

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1\times {\mathrm{2239}}^1$

素因数の和:2683

約数の個数: 32

約数和(自身を含む): 21512458240

約数和(自身を除く): 5791245853

約数列:

[1, 3, 67, 181, 193, 201, 543, 579, 2239, 6717, 12127, 12931, 34933, 36381, 38793, 104799, 150013, 405259, 432127, 450039, 1215777, 1296381, 2340511, 7021533, 27152353, 28952509, 78214987, 81457059, 86857527, 234644961, 5240404129, 15721212387]

約数ペア:

[(1, 15721212387), (3, 5240404129), (67, 234644961), (181, 86857527), (193, 81457059), (201, 78214987), (543, 28952509), (579, 27152353), (2239, 7021533), (6717, 2340511), (12127, 1296381), (12931, 1215777), (34933, 450039), (36381, 432127), (38793, 405259), (104799, 150013)]