21272955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{563}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 37359360

約数和(自身を除く): 16086405

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 229, 563, 687, 1145, 1689, 2519, 2815, 3435, 6193, 7557, 8445, 12595, 18579, 30965, 37785, 92895, 128927, 386781, 644635, 1418197, 1933905, 4254591, 7090985, 21272955]

約数ペア:

[(1, 21272955), (3, 7090985), (5, 4254591), (11, 1933905), (15, 1418197), (33, 644635), (55, 386781), (165, 128927), (229, 92895), (563, 37785), (687, 30965), (1145, 18579), (1689, 12595), (2519, 8445), (2815, 7557), (3435, 6193)]