21417503780

素因数分解:

$2^2\times 5^1\times {\mathrm{40351}}^1\times {\mathrm{26539}}^1$

素因数の和:66899

約数の個数: 24

約数和(自身を含む): 44979567360

約数和(自身を除く): 23562063580

約数列:

[1, 2, 4, 5, 10, 20, 26539, 40351, 53078, 80702, 106156, 132695, 161404, 201755, 265390, 403510, 530780, 807020, 1070875189, 2141750378, 4283500756, 5354375945, 10708751890, 21417503780]

約数ペア:

[(1, 21417503780), (2, 10708751890), (4, 5354375945), (5, 4283500756), (10, 2141750378), (20, 1070875189), (26539, 807020), (40351, 530780), (53078, 403510), (80702, 265390), (106156, 201755), (132695, 161404)]