221566509

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{14173}}^1$

素因数の和:14378

約数の個数: 20

約数和(自身を含む): 332720476

約数和(自身を除く): 111153967

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5211, 14173, 15633, 42519, 127557, 382671, 1148013, 2735389, 8206167, 24618501, 73855503, 221566509]

約数ペア:

[(1, 221566509), (3, 73855503), (9, 24618501), (27, 8206167), (81, 2735389), (193, 1148013), (579, 382671), (1737, 127557), (5211, 42519), (14173, 15633)]