20181284

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 36197280

約数和(自身を除く): 16015996

約数列:

[1, 2, 4, 83, 89, 166, 178, 332, 356, 683, 1366, 2732, 7387, 14774, 29548, 56689, 60787, 113378, 121574, 226756, 243148, 5045321, 10090642, 20181284]

約数ペア:

[(1, 20181284), (2, 10090642), (4, 5045321), (83, 243148), (89, 226756), (166, 121574), (178, 113378), (332, 60787), (356, 56689), (683, 29548), (1366, 14774), (2732, 7387)]