209561205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{37657}}^1$

素因数の和:37725

約数の個数: 32

約数和(自身を含む): 390438144

約数和(自身を除く): 180876939

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 5565, 37657, 112971, 188285, 263599, 564855, 790797, 1317995, 1995821, 3953985, 5987463, 9979105, 13970747, 29937315, 41912241, 69853735, 209561205]

約数ペア:

[(1, 209561205), (3, 69853735), (5, 41912241), (7, 29937315), (15, 13970747), (21, 9979105), (35, 5987463), (53, 3953985), (105, 1995821), (159, 1317995), (265, 790797), (371, 564855), (795, 263599), (1113, 188285), (1855, 112971), (5565, 37657)]