21216840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{176807}}^1$

素因数の和:176821

約数の個数: 32

約数和(自身を含む): 63650880

約数和(自身を除く): 42434040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 176807, 353614, 530421, 707228, 884035, 1060842, 1414456, 1768070, 2121684, 2652105, 3536140, 4243368, 5304210, 7072280, 10608420, 21216840]

約数ペア:

[(1, 21216840), (2, 10608420), (3, 7072280), (4, 5304210), (5, 4243368), (6, 3536140), (8, 2652105), (10, 2121684), (12, 1768070), (15, 1414456), (20, 1060842), (24, 884035), (30, 707228), (40, 530421), (60, 353614), (120, 176807)]