21546380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56701}}^1$

素因数の和:56729

約数の個数: 24

約数和(自身を含む): 47629680

約数和(自身を除く): 26083300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56701, 113402, 226804, 283505, 567010, 1077319, 1134020, 2154638, 4309276, 5386595, 10773190, 21546380]

約数ペア:

[(1, 21546380), (2, 10773190), (4, 5386595), (5, 4309276), (10, 2154638), (19, 1134020), (20, 1077319), (38, 567010), (76, 283505), (95, 226804), (190, 113402), (380, 56701)]