19209904

素因数分解:

$2^4\times 7^1\times {\mathrm{171517}}^1$

素因数の和:171532

約数の個数: 20

約数和(自身を含む): 42536464

約数和(自身を除く): 23326560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 171517, 343034, 686068, 1200619, 1372136, 2401238, 2744272, 4802476, 9604952, 19209904]

約数ペア:

[(1, 19209904), (2, 9604952), (4, 4802476), (7, 2744272), (8, 2401238), (14, 1372136), (16, 1200619), (28, 686068), (56, 343034), (112, 171517)]