989406

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 2471040

約数和(自身を除く): 1481634

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 171, 198, 209, 263, 342, 418, 526, 627, 789, 1254, 1578, 1881, 2367, 2893, 3762, 4734, 4997, 5786, 8679, 9994, 14991, 17358, 26037, 29982, 44973, 52074, 54967, 89946, 109934, 164901, 329802, 494703, 989406]

約数ペア:

[(1, 989406), (2, 494703), (3, 329802), (6, 164901), (9, 109934), (11, 89946), (18, 54967), (19, 52074), (22, 44973), (33, 29982), (38, 26037), (57, 17358), (66, 14991), (99, 9994), (114, 8679), (171, 5786), (198, 4997), (209, 4734), (263, 3762), (342, 2893), (418, 2367), (526, 1881), (627, 1578), (789, 1254)]