21000891288

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67310549}}^1$

素因数の和:67310571

約数の個数: 32

約数和(自身を含む): 56540862000

約数和(自身を除く): 35539970712

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67310549, 134621098, 201931647, 269242196, 403863294, 538484392, 807726588, 875037137, 1615453176, 1750074274, 2625111411, 3500148548, 5250222822, 7000297096, 10500445644, 21000891288]

約数ペア:

[(1, 21000891288), (2, 10500445644), (3, 7000297096), (4, 5250222822), (6, 3500148548), (8, 2625111411), (12, 1750074274), (13, 1615453176), (24, 875037137), (26, 807726588), (39, 538484392), (52, 403863294), (78, 269242196), (104, 201931647), (156, 134621098), (312, 67310549)]