64590729

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 101274624

約数和(自身を除く): 36683895

約数列:

[1, 3, 7, 21, 53, 131, 159, 371, 393, 443, 917, 1113, 1329, 2751, 3101, 6943, 9303, 20829, 23479, 48601, 58033, 70437, 145803, 164353, 174099, 406231, 493059, 1218693, 3075749, 9227247, 21530243, 64590729]

約数ペア:

[(1, 64590729), (3, 21530243), (7, 9227247), (21, 3075749), (53, 1218693), (131, 493059), (159, 406231), (371, 174099), (393, 164353), (443, 145803), (917, 70437), (1113, 58033), (1329, 48601), (2751, 23479), (3101, 20829), (6943, 9303)]