221939135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{571}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 300478464

約数和(自身を除く): 78539329

約数列:

[1, 5, 11, 37, 55, 185, 191, 407, 571, 955, 2035, 2101, 2855, 6281, 7067, 10505, 21127, 31405, 35335, 77737, 105635, 109061, 232397, 388685, 545305, 1161985, 1199671, 4035257, 5998355, 20176285, 44387827, 221939135]

約数ペア:

[(1, 221939135), (5, 44387827), (11, 20176285), (37, 5998355), (55, 4035257), (185, 1199671), (191, 1161985), (407, 545305), (571, 388685), (955, 232397), (2035, 109061), (2101, 105635), (2855, 77737), (6281, 35335), (7067, 31405), (10505, 21127)]