21545902

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90529}}^1$

素因数の和:90555

約数の個数: 16

約数和(自身を含む): 39108960

約数和(自身を除く): 17563058

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90529, 181058, 633703, 1267406, 1538993, 3077986, 10772951, 21545902]

約数ペア:

[(1, 21545902), (2, 10772951), (7, 3077986), (14, 1538993), (17, 1267406), (34, 633703), (119, 181058), (238, 90529)]