261972009

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1619}}^1$

素因数の和:2102

約数の個数: 32

約数和(自身を含む): 419126400

約数和(自身を除く): 157154391

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 461, 1383, 1619, 4149, 4857, 5993, 12447, 14571, 17979, 21047, 43713, 53937, 63141, 161811, 189423, 568269, 746359, 2239077, 6717231, 9702667, 20151693, 29108001, 87324003, 261972009]

約数ペア:

[(1, 261972009), (3, 87324003), (9, 29108001), (13, 20151693), (27, 9702667), (39, 6717231), (117, 2239077), (351, 746359), (461, 568269), (1383, 189423), (1619, 161811), (4149, 63141), (4857, 53937), (5993, 43713), (12447, 21047), (14571, 17979)]