21156054458

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1934887}}^1$

素因数の和:1934978

約数の個数: 32

約数和(自身を含む): 40121837568

約数和(自身を除く): 18965783110

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 5467, 10934, 1934887, 3869774, 13544209, 21283757, 27088418, 42567514, 137376977, 148986299, 274753954, 297972598, 961638839, 1511146747, 1923277678, 3022293494, 10578027229, 21156054458]

約数ペア:

[(1, 21156054458), (2, 10578027229), (7, 3022293494), (11, 1923277678), (14, 1511146747), (22, 961638839), (71, 297972598), (77, 274753954), (142, 148986299), (154, 137376977), (497, 42567514), (781, 27088418), (994, 21283757), (1562, 13544209), (5467, 3869774), (10934, 1934887)]