21293560

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{877}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 48044160

約数和(自身を除く): 26750600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 877, 1214, 1754, 2428, 3035, 3508, 4385, 4856, 6070, 7016, 8770, 12140, 17540, 24280, 35080, 532339, 1064678, 2129356, 2661695, 4258712, 5323390, 10646780, 21293560]

約数ペア:

[(1, 21293560), (2, 10646780), (4, 5323390), (5, 4258712), (8, 2661695), (10, 2129356), (20, 1064678), (40, 532339), (607, 35080), (877, 24280), (1214, 17540), (1754, 12140), (2428, 8770), (3035, 7016), (3508, 6070), (4385, 4856)]