20103129

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 31608720

約数和(自身を除く): 11505591

約数列:

[1, 3, 9, 17, 51, 59, 131, 153, 177, 289, 393, 531, 867, 1003, 1179, 2227, 2601, 3009, 6681, 7729, 9027, 17051, 20043, 23187, 37859, 51153, 69561, 113577, 131393, 153459, 340731, 394179, 1182537, 2233681, 6701043, 20103129]

約数ペア:

[(1, 20103129), (3, 6701043), (9, 2233681), (17, 1182537), (51, 394179), (59, 340731), (131, 153459), (153, 131393), (177, 113577), (289, 69561), (393, 51153), (531, 37859), (867, 23187), (1003, 20043), (1179, 17051), (2227, 9027), (2601, 7729), (3009, 6681)]