18944565

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 12684747

約数列:

[1, 3, 5, 15, 31, 93, 131, 155, 311, 393, 465, 655, 933, 1555, 1965, 4061, 4665, 9641, 12183, 20305, 28923, 40741, 48205, 60915, 122223, 144615, 203705, 611115, 1262971, 3788913, 6314855, 18944565]

約数ペア:

[(1, 18944565), (3, 6314855), (5, 3788913), (15, 1262971), (31, 611115), (93, 203705), (131, 144615), (155, 122223), (311, 60915), (393, 48205), (465, 40741), (655, 28923), (933, 20305), (1555, 12183), (1965, 9641), (4061, 4665)]