21386522

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{877}}^1$

素因数の和:1105

約数の個数: 16

約数和(自身を含む): 32714280

約数和(自身を除く): 11327758

約数列:

[1, 2, 89, 137, 178, 274, 877, 1754, 12193, 24386, 78053, 120149, 156106, 240298, 10693261, 21386522]

約数ペア:

[(1, 21386522), (2, 10693261), (89, 240298), (137, 156106), (178, 120149), (274, 78053), (877, 24386), (1754, 12193)]