31686993

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 50358672

約数和(自身を除く): 18671679

約数列:

[1, 3, 9, 13, 39, 83, 117, 169, 249, 251, 507, 747, 753, 1079, 1521, 2259, 3237, 3263, 9711, 9789, 14027, 20833, 29367, 42081, 42419, 62499, 126243, 127257, 187497, 270829, 381771, 812487, 2437461, 3520777, 10562331, 31686993]

約数ペア:

[(1, 31686993), (3, 10562331), (9, 3520777), (13, 2437461), (39, 812487), (83, 381771), (117, 270829), (169, 187497), (249, 127257), (251, 126243), (507, 62499), (747, 42419), (753, 42081), (1079, 29367), (1521, 20833), (2259, 14027), (3237, 9789), (3263, 9711)]