291216519

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1997}}^1$

素因数の和:2508

約数の個数: 32

約数和(自身を含む): 471847680

約数和(自身を除く): 180631161

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 491, 1473, 1997, 4419, 5401, 5991, 13257, 16203, 17973, 21967, 48609, 53919, 65901, 145827, 197703, 593109, 980527, 2941581, 8824743, 10785797, 26474229, 32357391, 97072173, 291216519]

約数ペア:

[(1, 291216519), (3, 97072173), (9, 32357391), (11, 26474229), (27, 10785797), (33, 8824743), (99, 2941581), (297, 980527), (491, 593109), (1473, 197703), (1997, 145827), (4419, 65901), (5401, 53919), (5991, 48609), (13257, 21967), (16203, 17973)]