21095991808

素因数分解:

$2^9\times {\mathrm{83}}^2\times {\mathrm{5981}}^1$

素因数の和:6165

約数の個数: 60

約数和(自身を含む): 42671873178

約数和(自身を除く): 21575881370

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 256, 332, 512, 664, 1328, 2656, 5312, 5981, 6889, 10624, 11962, 13778, 21248, 23924, 27556, 42496, 47848, 55112, 95696, 110224, 191392, 220448, 382784, 440896, 496423, 765568, 881792, 992846, 1531136, 1763584, 1985692, 3062272, 3527168, 3971384, 7942768, 15885536, 31771072, 41203109, 63542144, 82406218, 127084288, 164812436, 254168576, 329624872, 659249744, 1318499488, 2636998976, 5273997952, 10547995904, 21095991808]

約数ペア:

[(1, 21095991808), (2, 10547995904), (4, 5273997952), (8, 2636998976), (16, 1318499488), (32, 659249744), (64, 329624872), (83, 254168576), (128, 164812436), (166, 127084288), (256, 82406218), (332, 63542144), (512, 41203109), (664, 31771072), (1328, 15885536), (2656, 7942768), (5312, 3971384), (5981, 3527168), (6889, 3062272), (10624, 1985692), (11962, 1763584), (13778, 1531136), (21248, 992846), (23924, 881792), (27556, 765568), (42496, 496423), (47848, 440896), (55112, 382784), (95696, 220448), (110224, 191392)]