19977824

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15227}}^1$

素因数の和:15278

約数の個数: 24

約数和(自身を含む): 40293288

約数和(自身を除く): 20315464

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15227, 30454, 60908, 121816, 243632, 487264, 624307, 1248614, 2497228, 4994456, 9988912, 19977824]

約数ペア:

[(1, 19977824), (2, 9988912), (4, 4994456), (8, 2497228), (16, 1248614), (32, 624307), (41, 487264), (82, 243632), (164, 121816), (328, 60908), (656, 30454), (1312, 15227)]