21378088

素因数分解:

$2^3\times {\mathrm{773}}^1\times {\mathrm{3457}}^1$

素因数の和:4236

約数の個数: 16

約数和(自身を含む): 40147380

約数和(自身を除く): 18769292

約数列:

[1, 2, 4, 8, 773, 1546, 3092, 3457, 6184, 6914, 13828, 27656, 2672261, 5344522, 10689044, 21378088]

約数ペア:

[(1, 21378088), (2, 10689044), (4, 5344522), (8, 2672261), (773, 27656), (1546, 13828), (3092, 6914), (3457, 6184)]