20921241

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6277}}^1$

素因数の和:6392

約数の個数: 16

約数和(自身を含む): 30737088

約数和(自身を除く): 9815847

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6277, 18831, 69047, 207141, 633977, 1901931, 6973747, 20921241]

約数ペア:

[(1, 20921241), (3, 6973747), (11, 1901931), (33, 633977), (101, 207141), (303, 69047), (1111, 18831), (3333, 6277)]