21439941

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 31850496

約数和(自身を除く): 10410555

約数列:

[1, 3, 17, 31, 51, 71, 93, 191, 213, 527, 573, 1207, 1581, 2201, 3247, 3621, 5921, 6603, 9741, 13561, 17763, 37417, 40683, 100657, 112251, 230537, 301971, 420391, 691611, 1261173, 7146647, 21439941]

約数ペア:

[(1, 21439941), (3, 7146647), (17, 1261173), (31, 691611), (51, 420391), (71, 301971), (93, 230537), (191, 112251), (213, 100657), (527, 40683), (573, 37417), (1207, 17763), (1581, 13561), (2201, 9741), (3247, 6603), (3621, 5921)]