201318221

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 228467400

約数和(自身を除く): 27149179

約数列:

[1, 13, 37, 53, 149, 481, 689, 1937, 1961, 2809, 5513, 7897, 25493, 36517, 71669, 102661, 103933, 292189, 418541, 1351129, 3798457, 5441033, 15486017, 201318221]

約数ペア:

[(1, 201318221), (13, 15486017), (37, 5441033), (53, 3798457), (149, 1351129), (481, 418541), (689, 292189), (1937, 103933), (1961, 102661), (2809, 71669), (5513, 36517), (7897, 25493)]