209702157

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 343643520

約数和(自身を除く): 133941363

約数列:

[1, 3, 7, 17, 21, 51, 109, 119, 289, 317, 327, 357, 763, 867, 951, 1853, 2023, 2219, 2289, 5389, 5559, 6069, 6657, 12971, 16167, 31501, 34553, 37723, 38913, 91613, 94503, 103659, 113169, 220507, 241871, 274839, 587401, 641291, 661521, 725613, 1762203, 1923873, 4111807, 9985817, 12335421, 29957451, 69900719, 209702157]

約数ペア:

[(1, 209702157), (3, 69900719), (7, 29957451), (17, 12335421), (21, 9985817), (51, 4111807), (109, 1923873), (119, 1762203), (289, 725613), (317, 661521), (327, 641291), (357, 587401), (763, 274839), (867, 241871), (951, 220507), (1853, 113169), (2023, 103659), (2219, 94503), (2289, 91613), (5389, 38913), (5559, 37723), (6069, 34553), (6657, 31501), (12971, 16167)]