209214555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1901}}^1$

素因数の和:1972

約数の個数: 64

約数和(自身を含む): 394398720

約数和(自身を除く): 185184165

約数列:

[1, 3, 5, 11, 15, 23, 29, 33, 55, 69, 87, 115, 145, 165, 253, 319, 345, 435, 667, 759, 957, 1265, 1595, 1901, 2001, 3335, 3795, 4785, 5703, 7337, 9505, 10005, 20911, 22011, 28515, 36685, 43723, 55129, 62733, 104555, 110055, 131169, 165387, 218615, 275645, 313665, 480953, 606419, 655845, 826935, 1267967, 1442859, 1819257, 2404765, 3032095, 3803901, 6339835, 7214295, 9096285, 13947637, 19019505, 41842911, 69738185, 209214555]

約数ペア:

[(1, 209214555), (3, 69738185), (5, 41842911), (11, 19019505), (15, 13947637), (23, 9096285), (29, 7214295), (33, 6339835), (55, 3803901), (69, 3032095), (87, 2404765), (115, 1819257), (145, 1442859), (165, 1267967), (253, 826935), (319, 655845), (345, 606419), (435, 480953), (667, 313665), (759, 275645), (957, 218615), (1265, 165387), (1595, 131169), (1901, 110055), (2001, 104555), (3335, 62733), (3795, 55129), (4785, 43723), (5703, 36685), (7337, 28515), (9505, 22011), (10005, 20911)]