21812685

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 36664320

約数和(自身を除く): 14851635

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 769, 915, 1891, 2307, 3845, 5673, 9455, 11535, 23839, 28365, 46909, 71517, 119195, 140727, 234545, 357585, 703635, 1454179, 4362537, 7270895, 21812685]

約数ペア:

[(1, 21812685), (3, 7270895), (5, 4362537), (15, 1454179), (31, 703635), (61, 357585), (93, 234545), (155, 140727), (183, 119195), (305, 71517), (465, 46909), (769, 28365), (915, 23839), (1891, 11535), (2307, 9455), (3845, 5673)]