13257729

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 21085440

約数和(自身を除く): 7827711

約数列:

[1, 3, 9, 23, 27, 37, 69, 111, 207, 333, 577, 621, 851, 999, 1731, 2553, 5193, 7659, 13271, 15579, 21349, 22977, 39813, 64047, 119439, 192141, 358317, 491027, 576423, 1473081, 4419243, 13257729]

約数ペア:

[(1, 13257729), (3, 4419243), (9, 1473081), (23, 576423), (27, 491027), (37, 358317), (69, 192141), (111, 119439), (207, 64047), (333, 39813), (577, 22977), (621, 21349), (851, 15579), (999, 13271), (1731, 7659), (2553, 5193)]