18956245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{929}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 28926720

約数和(自身を除く): 9970475

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 929, 1855, 2915, 4081, 4645, 6503, 10219, 20405, 32515, 49237, 51095, 71533, 246185, 344659, 357665, 541607, 1723295, 2708035, 3791249, 18956245]

約数ペア:

[(1, 18956245), (5, 3791249), (7, 2708035), (11, 1723295), (35, 541607), (53, 357665), (55, 344659), (77, 246185), (265, 71533), (371, 51095), (385, 49237), (583, 32515), (929, 20405), (1855, 10219), (2915, 6503), (4081, 4645)]