21504051

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1753}}^1$

素因数の和:1835

約数の個数: 24

約数和(自身を含む): 32834880

約数和(自身を除く): 11330829

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1753, 4089, 5259, 12267, 15777, 50837, 82391, 152511, 247173, 457533, 741519, 2389339, 7168017, 21504051]

約数ペア:

[(1, 21504051), (3, 7168017), (9, 2389339), (29, 741519), (47, 457533), (87, 247173), (141, 152511), (261, 82391), (423, 50837), (1363, 15777), (1753, 12267), (4089, 5259)]