402185979

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{381943}}^1$

素因数の和:381968

約数の個数: 20

約数和(自身を含む): 647013136

約数和(自身を除く): 244827157

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 381943, 1145829, 3437487, 4965259, 10312461, 14895777, 30937383, 44687331, 134061993, 402185979]

約数ペア:

[(1, 402185979), (3, 134061993), (9, 44687331), (13, 30937383), (27, 14895777), (39, 10312461), (81, 4965259), (117, 3437487), (351, 1145829), (1053, 381943)]