71886861

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 115015680

約数和(自身を除く): 43128819

約数列:

[1, 3, 9, 19, 31, 57, 71, 93, 171, 191, 213, 279, 573, 589, 639, 1349, 1719, 1767, 2201, 3629, 4047, 5301, 5921, 6603, 10887, 12141, 13561, 17763, 19809, 32661, 40683, 41819, 53289, 112499, 122049, 125457, 257659, 337497, 376371, 420391, 772977, 1012491, 1261173, 2318931, 3783519, 7987429, 23962287, 71886861]

約数ペア:

[(1, 71886861), (3, 23962287), (9, 7987429), (19, 3783519), (31, 2318931), (57, 1261173), (71, 1012491), (93, 772977), (171, 420391), (191, 376371), (213, 337497), (279, 257659), (573, 125457), (589, 122049), (639, 112499), (1349, 53289), (1719, 41819), (1767, 40683), (2201, 32661), (3629, 19809), (4047, 17763), (5301, 13561), (5921, 12141), (6603, 10887)]