18558231

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 27456000

約数和(自身を除く): 8897769

約数列:

[1, 3, 19, 29, 57, 87, 103, 109, 309, 327, 551, 1653, 1957, 2071, 2987, 3161, 5871, 6213, 8961, 9483, 11227, 33681, 56753, 60059, 170259, 180177, 213313, 325583, 639939, 976749, 6186077, 18558231]

約数ペア:

[(1, 18558231), (3, 6186077), (19, 976749), (29, 639939), (57, 325583), (87, 213313), (103, 180177), (109, 170259), (309, 60059), (327, 56753), (551, 33681), (1653, 11227), (1957, 9483), (2071, 8961), (2987, 6213), (3161, 5871)]