216508719

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{443}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 359831808

約数和(自身を除く): 143323089

約数列:

[1, 3, 7, 17, 21, 37, 51, 111, 119, 259, 357, 443, 629, 777, 1329, 1369, 1887, 3101, 4107, 4403, 7531, 9303, 9583, 13209, 16391, 22593, 23273, 28749, 49173, 52717, 69819, 114737, 158151, 162911, 278647, 344211, 488733, 606467, 835941, 1819401, 1950529, 4245269, 5851587, 10309939, 12735807, 30929817, 72169573, 216508719]

約数ペア:

[(1, 216508719), (3, 72169573), (7, 30929817), (17, 12735807), (21, 10309939), (37, 5851587), (51, 4245269), (111, 1950529), (119, 1819401), (259, 835941), (357, 606467), (443, 488733), (629, 344211), (777, 278647), (1329, 162911), (1369, 158151), (1887, 114737), (3101, 69819), (4107, 52717), (4403, 49173), (7531, 28749), (9303, 23273), (9583, 22593), (13209, 16391)]