209217555

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{557}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 385448544

約数和(自身を除く): 176230989

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 491, 557, 765, 1473, 1671, 2455, 2785, 4419, 5013, 7365, 8347, 8355, 9469, 22095, 25041, 25065, 28407, 41735, 47345, 75123, 85221, 125205, 142035, 273487, 375615, 426105, 820461, 1367435, 2461383, 4102305, 4649279, 12306915, 13947837, 23246395, 41843511, 69739185, 209217555]

約数ペア:

[(1, 209217555), (3, 69739185), (5, 41843511), (9, 23246395), (15, 13947837), (17, 12306915), (45, 4649279), (51, 4102305), (85, 2461383), (153, 1367435), (255, 820461), (491, 426105), (557, 375615), (765, 273487), (1473, 142035), (1671, 125205), (2455, 85221), (2785, 75123), (4419, 47345), (5013, 41735), (7365, 28407), (8347, 25065), (8355, 25041), (9469, 22095)]