81358821

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{1879}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 124937280

約数和(自身を除く): 43578459

約数列:

[1, 3, 9, 17, 51, 153, 283, 849, 1879, 2547, 4811, 5637, 14433, 16911, 31943, 43299, 95829, 287487, 531757, 1595271, 4785813, 9039869, 27119607, 81358821]

約数ペア:

[(1, 81358821), (3, 27119607), (9, 9039869), (17, 4785813), (51, 1595271), (153, 531757), (283, 287487), (849, 95829), (1879, 43299), (2547, 31943), (4811, 16911), (5637, 14433)]