21102968

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 40532400

約数和(自身を除く): 19429432

約数列:

[1, 2, 4, 8, 89, 107, 178, 214, 277, 356, 428, 554, 712, 856, 1108, 2216, 9523, 19046, 24653, 29639, 38092, 49306, 59278, 76184, 98612, 118556, 197224, 237112, 2637871, 5275742, 10551484, 21102968]

約数ペア:

[(1, 21102968), (2, 10551484), (4, 5275742), (8, 2637871), (89, 237112), (107, 197224), (178, 118556), (214, 98612), (277, 76184), (356, 59278), (428, 49306), (554, 38092), (712, 29639), (856, 24653), (1108, 19046), (2216, 9523)]