20996870015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1\times {\mathrm{3607}}^1$

素因数の和:4703

約数の個数: 32

約数和(自身を含む): 27775249920

約数和(自身を除く): 6778379905

約数列:

[1, 5, 11, 55, 109, 545, 971, 1199, 3607, 4855, 5995, 10681, 18035, 39677, 53405, 105839, 198385, 393163, 529195, 1164229, 1965815, 3502397, 4324793, 5821145, 17511985, 21623965, 38526367, 192631835, 381761273, 1908806365, 4199374003, 20996870015]

約数ペア:

[(1, 20996870015), (5, 4199374003), (11, 1908806365), (55, 381761273), (109, 192631835), (545, 38526367), (971, 21623965), (1199, 17511985), (3607, 5821145), (4855, 4324793), (5995, 3502397), (10681, 1965815), (18035, 1164229), (39677, 529195), (53405, 393163), (105839, 198385)]