261813387

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{331}}^1\times {\mathrm{2179}}^1$

素因数の和:2535

約数の個数: 24

約数和(自身を含む): 385040320

約数和(自身を除く): 123226933

約数列:

[1, 3, 11, 33, 121, 331, 363, 993, 2179, 3641, 6537, 10923, 23969, 40051, 71907, 120153, 263659, 721249, 790977, 2163747, 7933739, 23801217, 87271129, 261813387]

約数ペア:

[(1, 261813387), (3, 87271129), (11, 23801217), (33, 7933739), (121, 2163747), (331, 790977), (363, 721249), (993, 263659), (2179, 120153), (3641, 71907), (6537, 40051), (10923, 23969)]