21224008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2293}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 43356600

約数和(自身を除く): 22132592

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2293, 2314, 4586, 4628, 9172, 9256, 18344, 29809, 59618, 119236, 204077, 238472, 408154, 816308, 1632616, 2653001, 5306002, 10612004, 21224008]

約数ペア:

[(1, 21224008), (2, 10612004), (4, 5306002), (8, 2653001), (13, 1632616), (26, 816308), (52, 408154), (89, 238472), (104, 204077), (178, 119236), (356, 59618), (712, 29809), (1157, 18344), (2293, 9256), (2314, 9172), (4586, 4628)]