19916415

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4759}}^1$

素因数の和:4804

約数の個数: 32

約数和(自身を含む): 36556800

約数和(自身を除く): 16640385

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4759, 14277, 23795, 42831, 71385, 128493, 147529, 214155, 442587, 642465, 737645, 1327761, 2212935, 3983283, 6638805, 19916415]

約数ペア:

[(1, 19916415), (3, 6638805), (5, 3983283), (9, 2212935), (15, 1327761), (27, 737645), (31, 642465), (45, 442587), (93, 214155), (135, 147529), (155, 128493), (279, 71385), (465, 42831), (837, 23795), (1395, 14277), (4185, 4759)]