21283899

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1471}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 14326725

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1471, 2067, 4413, 4823, 10297, 14469, 19123, 30891, 57369, 77963, 133861, 233889, 401583, 545741, 1013519, 1637223, 3040557, 7094633, 21283899]

約数ペア:

[(1, 21283899), (3, 7094633), (7, 3040557), (13, 1637223), (21, 1013519), (39, 545741), (53, 401583), (91, 233889), (159, 133861), (273, 77963), (371, 57369), (689, 30891), (1113, 19123), (1471, 14469), (2067, 10297), (4413, 4823)]