21952315

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3001}}^1$

素因数の和:3043

約数の個数: 32

約数和(自身を含む): 34583040

約数和(自身を除く): 12630725

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 3001, 7315, 15005, 21007, 33011, 57019, 105035, 165055, 231077, 285095, 399133, 627209, 1155385, 1995665, 3136045, 4390463, 21952315]

約数ペア:

[(1, 21952315), (5, 4390463), (7, 3136045), (11, 1995665), (19, 1155385), (35, 627209), (55, 399133), (77, 285095), (95, 231077), (133, 165055), (209, 105035), (385, 57019), (665, 33011), (1045, 21007), (1463, 15005), (3001, 7315)]