1640403

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 2555280

約数和(自身を除く): 914877

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 181, 477, 543, 1007, 1629, 3021, 3439, 9063, 9593, 10317, 28779, 30951, 86337, 182267, 546801, 1640403]

約数ペア:

[(1, 1640403), (3, 546801), (9, 182267), (19, 86337), (53, 30951), (57, 28779), (159, 10317), (171, 9593), (181, 9063), (477, 3439), (543, 3021), (1007, 1629)]