21509532801

素因数分解:

$3^3\times {\mathrm{67}}^2\times {\mathrm{177467}}^1$

素因数の和:177610

約数の個数: 24

約数和(自身を含む): 32348867040

約数和(自身を除く): 10839334239

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 4489, 13467, 40401, 121203, 177467, 532401, 1597203, 4791609, 11890289, 35670867, 107012601, 321037803, 796649363, 2389948089, 7169844267, 21509532801]

約数ペア:

[(1, 21509532801), (3, 7169844267), (9, 2389948089), (27, 796649363), (67, 321037803), (201, 107012601), (603, 35670867), (1809, 11890289), (4489, 4791609), (13467, 1597203), (40401, 532401), (121203, 177467)]