19937968

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{33679}}^1$

素因数の和:33724

約数の個数: 20

約数和(自身を含む): 39675040

約数和(自身を除く): 19737072

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 33679, 67358, 134716, 269432, 538864, 1246123, 2492246, 4984492, 9968984, 19937968]

約数ペア:

[(1, 19937968), (2, 9968984), (4, 4984492), (8, 2492246), (16, 1246123), (37, 538864), (74, 269432), (148, 134716), (296, 67358), (592, 33679)]