221985813

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 364666880

約数和(自身を除く): 142681067

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 289, 357, 463, 553, 867, 1343, 1389, 1659, 2023, 3241, 4029, 6069, 7871, 9401, 9723, 22831, 23613, 28203, 36577, 55097, 68493, 109731, 133807, 159817, 165291, 256039, 401421, 479451, 621809, 768117, 936649, 1865427, 2809947, 4352663, 10570753, 13057989, 31712259, 73995271, 221985813]

約数ペア:

[(1, 221985813), (3, 73995271), (7, 31712259), (17, 13057989), (21, 10570753), (51, 4352663), (79, 2809947), (119, 1865427), (237, 936649), (289, 768117), (357, 621809), (463, 479451), (553, 401421), (867, 256039), (1343, 165291), (1389, 159817), (1659, 133807), (2023, 109731), (3241, 68493), (4029, 55097), (6069, 36577), (7871, 28203), (9401, 23613), (9723, 22831)]