19898512

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4051}}^1$

素因数の和:4366

約数の個数: 20

約数和(自身を含む): 38688496

約数和(自身を除く): 18789984

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4051, 4912, 8102, 16204, 32408, 64816, 1243657, 2487314, 4974628, 9949256, 19898512]

約数ペア:

[(1, 19898512), (2, 9949256), (4, 4974628), (8, 2487314), (16, 1243657), (307, 64816), (614, 32408), (1228, 16204), (2456, 8102), (4051, 4912)]