21274659

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2659}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 35409920

約数和(自身を除く): 14135261

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2659, 2667, 7977, 8001, 18613, 23931, 55839, 167517, 337693, 1013079, 2363851, 3039237, 7091553, 21274659]

約数ペア:

[(1, 21274659), (3, 7091553), (7, 3039237), (9, 2363851), (21, 1013079), (63, 337693), (127, 167517), (381, 55839), (889, 23931), (1143, 18613), (2659, 8001), (2667, 7977)]