21988239

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{337}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 36341760

約数和(自身を除く): 14353521

約数列:

[1, 3, 7, 13, 21, 39, 91, 239, 273, 337, 717, 1011, 1673, 2359, 3107, 4381, 5019, 7077, 9321, 13143, 21749, 30667, 65247, 80543, 92001, 241629, 563801, 1047059, 1691403, 3141177, 7329413, 21988239]

約数ペア:

[(1, 21988239), (3, 7329413), (7, 3141177), (13, 1691403), (21, 1047059), (39, 563801), (91, 241629), (239, 92001), (273, 80543), (337, 65247), (717, 30667), (1011, 21749), (1673, 13143), (2359, 9321), (3107, 7077), (4381, 5019)]