2154495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 4243968

約数和(自身を除く): 2089473

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 71, 85, 105, 119, 213, 255, 289, 355, 357, 497, 595, 867, 1065, 1207, 1445, 1491, 1785, 2023, 2485, 3621, 4335, 6035, 6069, 7455, 8449, 10115, 18105, 20519, 25347, 30345, 42245, 61557, 102595, 126735, 143633, 307785, 430899, 718165, 2154495]

約数ペア:

[(1, 2154495), (3, 718165), (5, 430899), (7, 307785), (15, 143633), (17, 126735), (21, 102595), (35, 61557), (51, 42245), (71, 30345), (85, 25347), (105, 20519), (119, 18105), (213, 10115), (255, 8449), (289, 7455), (355, 6069), (357, 6035), (497, 4335), (595, 3621), (867, 2485), (1065, 2023), (1207, 1785), (1445, 1491)]