18932679

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 36

約数和(自身を含む): 30171960

約数和(自身を除く): 11239281

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 251, 261, 289, 493, 753, 867, 1479, 2259, 2601, 4267, 4437, 7279, 8381, 12801, 21837, 25143, 38403, 65511, 72539, 75429, 123743, 217617, 371229, 652851, 1113687, 2103631, 6310893, 18932679]

約数ペア:

[(1, 18932679), (3, 6310893), (9, 2103631), (17, 1113687), (29, 652851), (51, 371229), (87, 217617), (153, 123743), (251, 75429), (261, 72539), (289, 65511), (493, 38403), (753, 25143), (867, 21837), (1479, 12801), (2259, 8381), (2601, 7279), (4267, 4437)]