19917904

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17053}}^1$

素因数の和:17134

約数の個数: 20

約数和(自身を含む): 39121876

約数和(自身を除く): 19203972

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17053, 34106, 68212, 136424, 272848, 1244869, 2489738, 4979476, 9958952, 19917904]

約数ペア:

[(1, 19917904), (2, 9958952), (4, 4979476), (8, 2489738), (16, 1244869), (73, 272848), (146, 136424), (292, 68212), (584, 34106), (1168, 17053)]