9991269

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:239

約数の個数: 40

約数和(自身を含む): 16169472

約数和(自身を除く): 6178203

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 173, 207, 279, 519, 621, 713, 837, 1557, 1863, 2139, 2511, 3979, 4671, 5363, 6417, 11937, 14013, 16089, 19251, 35811, 48267, 57753, 107433, 123349, 144801, 322299, 370047, 434403, 1110141, 3330423, 9991269]

約数ペア:

[(1, 9991269), (3, 3330423), (9, 1110141), (23, 434403), (27, 370047), (31, 322299), (69, 144801), (81, 123349), (93, 107433), (173, 57753), (207, 48267), (279, 35811), (519, 19251), (621, 16089), (713, 14013), (837, 11937), (1557, 6417), (1863, 5363), (2139, 4671), (2511, 3979)]