221013009

素因数分解:

$3^3\times 7^1\times {\mathrm{1169381}}^1$

素因数の和:1169397

約数の個数: 16

約数和(自身を含む): 374202240

約数和(自身を除く): 153189231

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1169381, 3508143, 8185667, 10524429, 24557001, 31573287, 73671003, 221013009]

約数ペア:

[(1, 221013009), (3, 73671003), (7, 31573287), (9, 24557001), (21, 10524429), (27, 8185667), (63, 3508143), (189, 1169381)]