18771376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90247}}^1$

素因数の和:90268

約数の個数: 20

約数和(自身を含む): 39167632

約数和(自身を除く): 20396256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90247, 180494, 360988, 721976, 1173211, 1443952, 2346422, 4692844, 9385688, 18771376]

約数ペア:

[(1, 18771376), (2, 9385688), (4, 4692844), (8, 2346422), (13, 1443952), (16, 1173211), (26, 721976), (52, 360988), (104, 180494), (208, 90247)]