30402981

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1062

約数の個数: 36

約数和(自身を含む): 51858144

約数和(自身を除く): 21455163

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 971, 1491, 2913, 3479, 4473, 6797, 8739, 10437, 20391, 31311, 47579, 61173, 68941, 142737, 206823, 428211, 482587, 620469, 1447761, 3378109, 4343283, 10134327, 30402981]

約数ペア:

[(1, 30402981), (3, 10134327), (7, 4343283), (9, 3378109), (21, 1447761), (49, 620469), (63, 482587), (71, 428211), (147, 206823), (213, 142737), (441, 68941), (497, 61173), (639, 47579), (971, 31311), (1491, 20391), (2913, 10437), (3479, 8739), (4473, 6797)]