221567479

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1\times {\mathrm{1831}}^1$

素因数の和:2190

約数の個数: 16

約数和(自身を含む): 258531840

約数和(自身を除く): 36964361

約数列:

[1, 7, 59, 293, 413, 1831, 2051, 12817, 17287, 108029, 121009, 536483, 756203, 3755381, 31652497, 221567479]

約数ペア:

[(1, 221567479), (7, 31652497), (59, 3755381), (293, 756203), (413, 536483), (1831, 121009), (2051, 108029), (12817, 17287)]