20409398

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{673}}^1$

素因数の和:991

約数の個数: 16

約数和(自身を含む): 31300560

約数和(自身を除く): 10891162

約数列:

[1, 2, 59, 118, 257, 514, 673, 1346, 15163, 30326, 39707, 79414, 172961, 345922, 10204699, 20409398]

約数ペア:

[(1, 20409398), (2, 10204699), (59, 345922), (118, 172961), (257, 79414), (514, 39707), (673, 30326), (1346, 15163)]