215401901

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3701}}^1$

素因数の和:3773

約数の個数: 24

約数和(自身を含む): 261938712

約数和(自身を除く): 46536811

約数列:

[1, 11, 13, 37, 121, 143, 407, 481, 1573, 3701, 4477, 5291, 40711, 48113, 58201, 136937, 447821, 529243, 1506307, 1780181, 5821673, 16569377, 19581991, 215401901]

約数ペア:

[(1, 215401901), (11, 19581991), (13, 16569377), (37, 5821673), (121, 1780181), (143, 1506307), (407, 529243), (481, 447821), (1573, 136937), (3701, 58201), (4477, 48113), (5291, 40711)]