17911089

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 31629312

約数和(自身を除く): 13718223

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 263, 329, 423, 483, 789, 987, 1081, 1449, 1841, 2367, 2961, 3243, 5523, 6049, 7567, 9729, 12361, 16569, 18147, 22701, 37083, 42343, 54441, 68103, 86527, 111249, 127029, 259581, 284303, 381087, 778743, 852909, 1990121, 2558727, 5970363, 17911089]

約数ペア:

[(1, 17911089), (3, 5970363), (7, 2558727), (9, 1990121), (21, 852909), (23, 778743), (47, 381087), (63, 284303), (69, 259581), (141, 127029), (161, 111249), (207, 86527), (263, 68103), (329, 54441), (423, 42343), (483, 37083), (789, 22701), (987, 18147), (1081, 16569), (1449, 12361), (1841, 9729), (2367, 7567), (2961, 6049), (3243, 5523)]