21903363

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1083

約数の個数: 24

約数和(自身を含む): 32954688

約数和(自身を除く): 11051325

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 977, 2491, 2931, 7473, 8793, 22419, 45919, 51781, 137757, 155343, 413271, 466029, 2433707, 7301121, 21903363]

約数ペア:

[(1, 21903363), (3, 7301121), (9, 2433707), (47, 466029), (53, 413271), (141, 155343), (159, 137757), (423, 51781), (477, 45919), (977, 22419), (2491, 8793), (2931, 7473)]