21697304

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159539}}^1$

素因数の和:159562

約数の個数: 16

約数和(自身を含む): 43075800

約数和(自身を除く): 21378496

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159539, 319078, 638156, 1276312, 2712163, 5424326, 10848652, 21697304]

約数ペア:

[(1, 21697304), (2, 10848652), (4, 5424326), (8, 2712163), (17, 1276312), (34, 638156), (68, 319078), (136, 159539)]