18645904

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10313}}^1$

素因数の和:10434

約数の個数: 20

約数和(自身を含む): 36449676

約数和(自身を除く): 17803772

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10313, 20626, 41252, 82504, 165008, 1165369, 2330738, 4661476, 9322952, 18645904]

約数ペア:

[(1, 18645904), (2, 9322952), (4, 4661476), (8, 2330738), (16, 1165369), (113, 165008), (226, 82504), (452, 41252), (904, 20626), (1808, 10313)]