17980456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2083}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 36761760

約数和(自身を除く): 18781304

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2083, 2158, 4166, 4316, 8332, 8632, 16664, 27079, 54158, 108316, 172889, 216632, 345778, 691556, 1383112, 2247557, 4495114, 8990228, 17980456]

約数ペア:

[(1, 17980456), (2, 8990228), (4, 4495114), (8, 2247557), (13, 1383112), (26, 691556), (52, 345778), (83, 216632), (104, 172889), (166, 108316), (332, 54158), (664, 27079), (1079, 16664), (2083, 8632), (2158, 8332), (4166, 4316)]