219108961

素因数分解:

${\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 238224672

約数和(自身を除く): 19115711

約数列:

[1, 31, 41, 67, 83, 961, 1271, 2077, 2573, 2747, 3403, 5561, 39401, 64387, 79763, 85157, 105493, 172391, 228001, 2639867, 3270283, 5344121, 7068031, 219108961]

約数ペア:

[(1, 219108961), (31, 7068031), (41, 5344121), (67, 3270283), (83, 2639867), (961, 228001), (1271, 172391), (2077, 105493), (2573, 85157), (2747, 79763), (3403, 64387), (5561, 39401)]