260820999

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1307}}^1$

素因数の和:1724

約数の個数: 32

約数和(自身を含む): 408096000

約数和(自身を除く): 147275001

約数列:

[1, 3, 9, 19, 27, 57, 171, 389, 513, 1167, 1307, 3501, 3921, 7391, 10503, 11763, 22173, 24833, 35289, 66519, 74499, 199557, 223497, 508423, 670491, 1525269, 4575807, 9660037, 13727421, 28980111, 86940333, 260820999]

約数ペア:

[(1, 260820999), (3, 86940333), (9, 28980111), (19, 13727421), (27, 9660037), (57, 4575807), (171, 1525269), (389, 670491), (513, 508423), (1167, 223497), (1307, 199557), (3501, 74499), (3921, 66519), (7391, 35289), (10503, 24833), (11763, 22173)]