261915651

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{283}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 421065216

約数和(自身を除く): 159149565

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 263, 283, 391, 789, 849, 1173, 2367, 2547, 3519, 4471, 4811, 6049, 6509, 13413, 14433, 18147, 19527, 40239, 43299, 54441, 58581, 74429, 102833, 110653, 223287, 308499, 331959, 669861, 925497, 995877, 1265293, 1711867, 3795879, 5135601, 11387637, 15406803, 29101739, 87305217, 261915651]

約数ペア:

[(1, 261915651), (3, 87305217), (9, 29101739), (17, 15406803), (23, 11387637), (51, 5135601), (69, 3795879), (153, 1711867), (207, 1265293), (263, 995877), (283, 925497), (391, 669861), (789, 331959), (849, 308499), (1173, 223287), (2367, 110653), (2547, 102833), (3519, 74429), (4471, 58581), (4811, 54441), (6049, 43299), (6509, 40239), (13413, 19527), (14433, 18147)]