20120221221

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{439}}^1\times {\mathrm{2267}}^1$

素因数の和:3025

約数の個数: 32

約数和(自身を含む): 28165294080

約数和(自身を除く): 8045072859

約数列:

[1, 3, 23, 69, 293, 439, 879, 1317, 2267, 6739, 6801, 10097, 20217, 30291, 52141, 128627, 156423, 385881, 664231, 995213, 1992693, 2958421, 2985639, 8875263, 15277313, 22889899, 45831939, 68669697, 291597409, 874792227, 6706740407, 20120221221]

約数ペア:

[(1, 20120221221), (3, 6706740407), (23, 874792227), (69, 291597409), (293, 68669697), (439, 45831939), (879, 22889899), (1317, 15277313), (2267, 8875263), (6739, 2985639), (6801, 2958421), (10097, 1992693), (20217, 995213), (30291, 664231), (52141, 385881), (128627, 156423)]