21000663528

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67309819}}^1$

素因数の和:67309841

約数の個数: 32

約数和(自身を含む): 56540248800

約数和(自身を除く): 35539585272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67309819, 134619638, 201929457, 269239276, 403858914, 538478552, 807717828, 875027647, 1615435656, 1750055294, 2625082941, 3500110588, 5250165882, 7000221176, 10500331764, 21000663528]

約数ペア:

[(1, 21000663528), (2, 10500331764), (3, 7000221176), (4, 5250165882), (6, 3500110588), (8, 2625082941), (12, 1750055294), (13, 1615435656), (24, 875027647), (26, 807717828), (39, 538478552), (52, 403858914), (78, 269239276), (104, 201929457), (156, 134619638), (312, 67309819)]