21490276

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{809}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 39123000

約数和(自身を除く): 17632724

約数列:

[1, 2, 4, 29, 58, 116, 229, 458, 809, 916, 1618, 3236, 6641, 13282, 23461, 26564, 46922, 93844, 185261, 370522, 741044, 5372569, 10745138, 21490276]

約数ペア:

[(1, 21490276), (2, 10745138), (4, 5372569), (29, 741044), (58, 370522), (116, 185261), (229, 93844), (458, 46922), (809, 26564), (916, 23461), (1618, 13282), (3236, 6641)]