20765704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1427}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20874776

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1427, 1819, 2854, 3638, 5708, 7276, 11416, 14552, 24259, 48518, 97036, 152689, 194072, 305378, 610756, 1221512, 2595713, 5191426, 10382852, 20765704]

約数ペア:

[(1, 20765704), (2, 10382852), (4, 5191426), (8, 2595713), (17, 1221512), (34, 610756), (68, 305378), (107, 194072), (136, 152689), (214, 97036), (428, 48518), (856, 24259), (1427, 14552), (1819, 11416), (2854, 7276), (3638, 5708)]