21309088

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 22127648

約数列:

[1, 2, 4, 8, 16, 32, 71, 83, 113, 142, 166, 226, 284, 332, 452, 568, 664, 904, 1136, 1328, 1808, 2272, 2656, 3616, 5893, 8023, 9379, 11786, 16046, 18758, 23572, 32092, 37516, 47144, 64184, 75032, 94288, 128368, 150064, 188576, 256736, 300128, 665909, 1331818, 2663636, 5327272, 10654544, 21309088]

約数ペア:

[(1, 21309088), (2, 10654544), (4, 5327272), (8, 2663636), (16, 1331818), (32, 665909), (71, 300128), (83, 256736), (113, 188576), (142, 150064), (166, 128368), (226, 94288), (284, 75032), (332, 64184), (452, 47144), (568, 37516), (664, 32092), (904, 23572), (1136, 18758), (1328, 16046), (1808, 11786), (2272, 9379), (2656, 8023), (3616, 5893)]