13421457

素因数分解:

$3^4\times 7^1\times {\mathrm{23671}}^1$

素因数の和:23690

約数の個数: 20

約数和(自身を含む): 22914496

約数和(自身を除く): 9493039

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 23671, 71013, 165697, 213039, 497091, 639117, 1491273, 1917351, 4473819, 13421457]

約数ペア:

[(1, 13421457), (3, 4473819), (7, 1917351), (9, 1491273), (21, 639117), (27, 497091), (63, 213039), (81, 165697), (189, 71013), (567, 23671)]