19885312

素因数分解:

$2^8\times {\mathrm{173}}^1\times {\mathrm{449}}^1$

素因数の和:638

約数の個数: 36

約数和(自身を含む): 40011300

約数和(自身を除く): 20125988

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 173, 256, 346, 449, 692, 898, 1384, 1796, 2768, 3592, 5536, 7184, 11072, 14368, 22144, 28736, 44288, 57472, 77677, 114944, 155354, 310708, 621416, 1242832, 2485664, 4971328, 9942656, 19885312]

約数ペア:

[(1, 19885312), (2, 9942656), (4, 4971328), (8, 2485664), (16, 1242832), (32, 621416), (64, 310708), (128, 155354), (173, 114944), (256, 77677), (346, 57472), (449, 44288), (692, 28736), (898, 22144), (1384, 14368), (1796, 11072), (2768, 7184), (3592, 5536)]