20309643

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 31116800

約数和(自身を除く): 10807157

約数列:

[1, 3, 9, 27, 67, 103, 109, 201, 309, 327, 603, 927, 981, 1809, 2781, 2943, 6901, 7303, 11227, 20703, 21909, 33681, 62109, 65727, 101043, 186327, 197181, 303129, 752209, 2256627, 6769881, 20309643]

約数ペア:

[(1, 20309643), (3, 6769881), (9, 2256627), (27, 752209), (67, 303129), (103, 197181), (109, 186327), (201, 101043), (309, 65727), (327, 62109), (603, 33681), (927, 21909), (981, 20703), (1809, 11227), (2781, 7303), (2943, 6901)]