18990693

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2521}}^1$

素因数の和:2567

約数の個数: 24

約数和(自身を含む): 29376256

約数和(自身を除く): 10385563

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2521, 7533, 7563, 22689, 68067, 78151, 204201, 234453, 612603, 703359, 2110077, 6330231, 18990693]

約数ペア:

[(1, 18990693), (3, 6330231), (9, 2110077), (27, 703359), (31, 612603), (81, 234453), (93, 204201), (243, 78151), (279, 68067), (837, 22689), (2511, 7563), (2521, 7533)]