21084488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{677}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 42103800

約数和(自身を除く): 21019312

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 229, 458, 677, 916, 1354, 1832, 2708, 3893, 5416, 7786, 11509, 15572, 23018, 31144, 46036, 92072, 155033, 310066, 620132, 1240264, 2635561, 5271122, 10542244, 21084488]

約数ペア:

[(1, 21084488), (2, 10542244), (4, 5271122), (8, 2635561), (17, 1240264), (34, 620132), (68, 310066), (136, 155033), (229, 92072), (458, 46036), (677, 31144), (916, 23018), (1354, 15572), (1832, 11509), (2708, 7786), (3893, 5416)]