19827645

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 32672640

約数和(自身を除く): 12844995

約数列:

[1, 3, 5, 15, 67, 109, 181, 201, 327, 335, 543, 545, 905, 1005, 1635, 2715, 7303, 12127, 19729, 21909, 36381, 36515, 59187, 60635, 98645, 109545, 181905, 295935, 1321843, 3965529, 6609215, 19827645]

約数ペア:

[(1, 19827645), (3, 6609215), (5, 3965529), (15, 1321843), (67, 295935), (109, 181905), (181, 109545), (201, 98645), (327, 60635), (335, 59187), (543, 36515), (545, 36381), (905, 21909), (1005, 19729), (1635, 12127), (2715, 7303)]