21997573

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 26812800

約数和(自身を除く): 4815227

約数列:

[1, 13, 19, 29, 37, 83, 247, 377, 481, 551, 703, 1073, 1079, 1577, 2407, 3071, 7163, 9139, 13949, 20387, 20501, 31291, 39923, 45733, 58349, 89059, 265031, 594529, 758537, 1157767, 1692121, 21997573]

約数ペア:

[(1, 21997573), (13, 1692121), (19, 1157767), (29, 758537), (37, 594529), (83, 265031), (247, 89059), (377, 58349), (481, 45733), (551, 39923), (703, 31291), (1073, 20501), (1079, 20387), (1577, 13949), (2407, 9139), (3071, 7163)]