221336409

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{257069}}^1$

素因数の和:257120

約数の個数: 16

約数和(自身を含む): 345502080

約数和(自身を除く): 124165671

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 257069, 771207, 1799483, 5398449, 10539829, 31619487, 73778803, 221336409]

約数ペア:

[(1, 221336409), (3, 73778803), (7, 31619487), (21, 10539829), (41, 5398449), (123, 1799483), (287, 771207), (861, 257069)]