21578913993

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79043641}}^1$

素因数の和:79043664

約数の個数: 16

約数和(自身を含む): 35411551616

約数和(自身を除く): 13832637623

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 79043641, 237130923, 553305487, 1027567333, 1659916461, 3082701999, 7192971331, 21578913993]

約数ペア:

[(1, 21578913993), (3, 7192971331), (7, 3082701999), (13, 1659916461), (21, 1027567333), (39, 553305487), (91, 237130923), (273, 79043641)]