21837879

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2153}}^1$

素因数の和:2196

約数の個数: 36

約数和(自身を含む): 38306736

約数和(自身を除く): 16468857

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2153, 3381, 6459, 10143, 15071, 19377, 45213, 49519, 105497, 135639, 148557, 316491, 346633, 445671, 949473, 1039899, 2426431, 3119697, 7279293, 21837879]

約数ペア:

[(1, 21837879), (3, 7279293), (7, 3119697), (9, 2426431), (21, 1039899), (23, 949473), (49, 445671), (63, 346633), (69, 316491), (147, 148557), (161, 135639), (207, 105497), (441, 49519), (483, 45213), (1127, 19377), (1449, 15071), (2153, 10143), (3381, 6459)]