19721888

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{16657}}^1$

素因数の和:16704

約数の個数: 24

約数和(自身を含む): 39879252

約数和(自身を除く): 20157364

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 148, 296, 592, 1184, 16657, 33314, 66628, 133256, 266512, 533024, 616309, 1232618, 2465236, 4930472, 9860944, 19721888]

約数ペア:

[(1, 19721888), (2, 9860944), (4, 4930472), (8, 2465236), (16, 1232618), (32, 616309), (37, 533024), (74, 266512), (148, 133256), (296, 66628), (592, 33314), (1184, 16657)]