21077336

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4229}}^1$

素因数の和:4331

約数の個数: 32

約数和(自身を含む): 45684000

約数和(自身を除く): 24606664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4229, 4984, 8458, 16916, 29603, 33832, 59206, 118412, 236824, 376381, 752762, 1505524, 2634667, 3011048, 5269334, 10538668, 21077336]

約数ペア:

[(1, 21077336), (2, 10538668), (4, 5269334), (7, 3011048), (8, 2634667), (14, 1505524), (28, 752762), (56, 376381), (89, 236824), (178, 118412), (356, 59206), (623, 33832), (712, 29603), (1246, 16916), (2492, 8458), (4229, 4984)]