18401968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88471}}^1$

素因数の和:88492

約数の個数: 20

約数和(自身を含む): 38396848

約数和(自身を除く): 19994880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88471, 176942, 353884, 707768, 1150123, 1415536, 2300246, 4600492, 9200984, 18401968]

約数ペア:

[(1, 18401968), (2, 9200984), (4, 4600492), (8, 2300246), (13, 1415536), (16, 1150123), (26, 707768), (52, 353884), (104, 176942), (208, 88471)]