20907736

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 41184000

約数和(自身を除く): 20276264

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 199, 398, 571, 796, 1142, 1592, 2284, 4568, 4577, 9154, 13133, 18308, 26266, 36616, 52532, 105064, 113629, 227258, 454516, 909032, 2613467, 5226934, 10453868, 20907736]

約数ペア:

[(1, 20907736), (2, 10453868), (4, 5226934), (8, 2613467), (23, 909032), (46, 454516), (92, 227258), (184, 113629), (199, 105064), (398, 52532), (571, 36616), (796, 26266), (1142, 18308), (1592, 13133), (2284, 9154), (4568, 4577)]