21120532

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1327}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 38820096

約数和(自身を除く): 17699564

約数列:

[1, 2, 4, 23, 46, 92, 173, 346, 692, 1327, 2654, 3979, 5308, 7958, 15916, 30521, 61042, 122084, 229571, 459142, 918284, 5280133, 10560266, 21120532]

約数ペア:

[(1, 21120532), (2, 10560266), (4, 5280133), (23, 918284), (46, 459142), (92, 229571), (173, 122084), (346, 61042), (692, 30521), (1327, 15916), (2654, 7958), (3979, 5308)]