1687989621

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{1889}}^1$

素因数の和:2229

約数の個数: 32

約数和(自身を含む): 2418595200

約数和(自身を除く): 730605579

約数列:

[1, 3, 19, 57, 61, 183, 257, 771, 1159, 1889, 3477, 4883, 5667, 14649, 15677, 35891, 47031, 107673, 115229, 297863, 345687, 485473, 893589, 1456419, 2189351, 6568053, 9223987, 27671961, 29613853, 88841559, 562663207, 1687989621]

約数ペア:

[(1, 1687989621), (3, 562663207), (19, 88841559), (57, 29613853), (61, 27671961), (183, 9223987), (257, 6568053), (771, 2189351), (1159, 1456419), (1889, 893589), (3477, 485473), (4883, 345687), (5667, 297863), (14649, 115229), (15677, 107673), (35891, 47031)]