21969189

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{79}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 35730240

約数和(自身を除く): 13761051

約数列:

[1, 3, 9, 11, 33, 53, 79, 99, 159, 237, 477, 583, 711, 869, 1749, 2607, 2809, 4187, 5247, 7821, 8427, 12561, 25281, 30899, 37683, 46057, 92697, 138171, 221911, 278091, 414513, 665733, 1997199, 2441021, 7323063, 21969189]

約数ペア:

[(1, 21969189), (3, 7323063), (9, 2441021), (11, 1997199), (33, 665733), (53, 414513), (79, 278091), (99, 221911), (159, 138171), (237, 92697), (477, 46057), (583, 37683), (711, 30899), (869, 25281), (1749, 12561), (2607, 8427), (2809, 7821), (4187, 5247)]