19874565

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1631

約数の個数: 40

約数和(自身を含む): 36799488

約数和(自身を除く): 16924923

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 1583, 2511, 4185, 4749, 7915, 12555, 14247, 23745, 42741, 49073, 71235, 128223, 147219, 213705, 245365, 441657, 641115, 736095, 1324971, 2208285, 3974913, 6624855, 19874565]

約数ペア:

[(1, 19874565), (3, 6624855), (5, 3974913), (9, 2208285), (15, 1324971), (27, 736095), (31, 641115), (45, 441657), (81, 245365), (93, 213705), (135, 147219), (155, 128223), (279, 71235), (405, 49073), (465, 42741), (837, 23745), (1395, 14247), (1583, 12555), (2511, 7915), (4185, 4749)]