21358492088

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39847933}}^1$

素因数の和:39848006

約数の個数: 16

約数和(自身を含む): 40644892680

約数和(自身を除く): 19286400592

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39847933, 79695866, 159391732, 318783464, 2669811511, 5339623022, 10679246044, 21358492088]

約数ペア:

[(1, 21358492088), (2, 10679246044), (4, 5339623022), (8, 2669811511), (67, 318783464), (134, 159391732), (268, 79695866), (536, 39847933)]