17990055

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 33527520

約数和(自身を除く): 15537465

約数列:

[1, 3, 5, 9, 15, 19, 45, 53, 57, 95, 159, 171, 265, 285, 397, 477, 795, 855, 1007, 1191, 1985, 2385, 3021, 3573, 5035, 5955, 7543, 9063, 15105, 17865, 21041, 22629, 37715, 45315, 63123, 67887, 105205, 113145, 189369, 315615, 339435, 399779, 946845, 1199337, 1998895, 3598011, 5996685, 17990055]

約数ペア:

[(1, 17990055), (3, 5996685), (5, 3598011), (9, 1998895), (15, 1199337), (19, 946845), (45, 399779), (53, 339435), (57, 315615), (95, 189369), (159, 113145), (171, 105205), (265, 67887), (285, 63123), (397, 45315), (477, 37715), (795, 22629), (855, 21041), (1007, 17865), (1191, 15105), (1985, 9063), (2385, 7543), (3021, 5955), (3573, 5035)]