20857485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1523}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 36868608

約数和(自身を除く): 16011123

約数列:

[1, 3, 5, 11, 15, 33, 55, 83, 165, 249, 415, 913, 1245, 1523, 2739, 4565, 4569, 7615, 13695, 16753, 22845, 50259, 83765, 126409, 251295, 379227, 632045, 1390499, 1896135, 4171497, 6952495, 20857485]

約数ペア:

[(1, 20857485), (3, 6952495), (5, 4171497), (11, 1896135), (15, 1390499), (33, 632045), (55, 379227), (83, 251295), (165, 126409), (249, 83765), (415, 50259), (913, 22845), (1245, 16753), (1523, 13695), (2739, 7615), (4565, 4569)]