19922512

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7639}}^1$

素因数の和:7810

約数の個数: 20

約数和(自身を含む): 38841760

約数和(自身を除く): 18919248

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7639, 15278, 30556, 61112, 122224, 1245157, 2490314, 4980628, 9961256, 19922512]

約数ペア:

[(1, 19922512), (2, 9961256), (4, 4980628), (8, 2490314), (16, 1245157), (163, 122224), (326, 61112), (652, 30556), (1304, 15278), (2608, 7639)]