20420433

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{659}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 32329440

約数和(自身を除く): 11909007

約数列:

[1, 3, 9, 11, 33, 99, 313, 659, 939, 1977, 2817, 3443, 5931, 7249, 10329, 21747, 30987, 65241, 206267, 618801, 1856403, 2268937, 6806811, 20420433]

約数ペア:

[(1, 20420433), (3, 6806811), (9, 2268937), (11, 1856403), (33, 618801), (99, 206267), (313, 65241), (659, 30987), (939, 21747), (1977, 10329), (2817, 7249), (3443, 5931)]