21942207

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 17893953

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 797, 1197, 1311, 1449, 2391, 3059, 3933, 5579, 7173, 9177, 15143, 16737, 18331, 27531, 45429, 50211, 54993, 106001, 128317, 136287, 164979, 318003, 348289, 384951, 954009, 1044867, 1154853, 2438023, 3134601, 7314069, 21942207]

約数ペア:

[(1, 21942207), (3, 7314069), (7, 3134601), (9, 2438023), (19, 1154853), (21, 1044867), (23, 954009), (57, 384951), (63, 348289), (69, 318003), (133, 164979), (161, 136287), (171, 128317), (207, 106001), (399, 54993), (437, 50211), (483, 45429), (797, 27531), (1197, 18331), (1311, 16737), (1449, 15143), (2391, 9177), (3059, 7173), (3933, 5579)]