205344207

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 343388160

約数和(自身を除く): 138043953

約数列:

[1, 3, 9, 17, 23, 27, 51, 53, 69, 153, 159, 207, 367, 391, 459, 477, 621, 901, 1101, 1173, 1219, 1431, 2703, 3303, 3519, 3657, 6239, 8109, 8441, 9909, 10557, 10971, 18717, 19451, 20723, 24327, 25323, 32913, 56151, 58353, 62169, 75969, 143497, 168453, 175059, 186507, 227907, 330667, 430491, 447373, 525177, 559521, 992001, 1291473, 1342119, 2976003, 3874419, 4026357, 7605341, 8928009, 12079071, 22816023, 68448069, 205344207]

約数ペア:

[(1, 205344207), (3, 68448069), (9, 22816023), (17, 12079071), (23, 8928009), (27, 7605341), (51, 4026357), (53, 3874419), (69, 2976003), (153, 1342119), (159, 1291473), (207, 992001), (367, 559521), (391, 525177), (459, 447373), (477, 430491), (621, 330667), (901, 227907), (1101, 186507), (1173, 175059), (1219, 168453), (1431, 143497), (2703, 75969), (3303, 62169), (3519, 58353), (3657, 56151), (6239, 32913), (8109, 25323), (8441, 24327), (9909, 20723), (10557, 19451), (10971, 18717)]