31721013

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1801}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 48726080

約数和(自身を除く): 17005067

約数列:

[1, 3, 9, 19, 57, 103, 171, 309, 927, 1801, 1957, 5403, 5871, 16209, 17613, 34219, 102657, 185503, 307971, 556509, 1669527, 3524557, 10573671, 31721013]

約数ペア:

[(1, 31721013), (3, 10573671), (9, 3524557), (19, 1669527), (57, 556509), (103, 307971), (171, 185503), (309, 102657), (927, 34219), (1801, 17613), (1957, 16209), (5403, 5871)]