31840209

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{5867}}^1$

素因数の和:5946

約数の個数: 20

約数和(自身を含む): 48281904

約数和(自身を除く): 16441695

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 5867, 17601, 52803, 158409, 393089, 475227, 1179267, 3537801, 10613403, 31840209]

約数ペア:

[(1, 31840209), (3, 10613403), (9, 3537801), (27, 1179267), (67, 475227), (81, 393089), (201, 158409), (603, 52803), (1809, 17601), (5427, 5867)]