81738783

素因数分解:

$3^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2549}}^1$

素因数の和:3071

約数の個数: 24

約数和(自身を含む): 135252000

約数和(自身を除く): 53513217

約数列:

[1, 3, 7, 9, 21, 63, 509, 1527, 2549, 3563, 4581, 7647, 10689, 17843, 22941, 32067, 53529, 160587, 1297441, 3892323, 9082087, 11676969, 27246261, 81738783]

約数ペア:

[(1, 81738783), (3, 27246261), (7, 11676969), (9, 9082087), (21, 3892323), (63, 1297441), (509, 160587), (1527, 53529), (2549, 32067), (3563, 22941), (4581, 17843), (7647, 10689)]