20803077

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 31269888

約数和(自身を除く): 10466811

約数列:

[1, 3, 9, 31, 93, 173, 279, 431, 519, 1293, 1557, 3879, 5363, 13361, 16089, 40083, 48267, 74563, 120249, 223689, 671067, 2311453, 6934359, 20803077]

約数ペア:

[(1, 20803077), (3, 6934359), (9, 2311453), (31, 671067), (93, 223689), (173, 120249), (279, 74563), (431, 48267), (519, 40083), (1293, 16089), (1557, 13361), (3879, 5363)]