20538984

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 53317440

約数和(自身を除く): 32778456

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 67, 106, 134, 159, 201, 212, 241, 268, 318, 402, 424, 482, 536, 636, 723, 804, 964, 1272, 1446, 1608, 1928, 2892, 3551, 5784, 7102, 10653, 12773, 14204, 16147, 21306, 25546, 28408, 32294, 38319, 42612, 48441, 51092, 64588, 76638, 85224, 96882, 102184, 129176, 153276, 193764, 306552, 387528, 855791, 1711582, 2567373, 3423164, 5134746, 6846328, 10269492, 20538984]

約数ペア:

[(1, 20538984), (2, 10269492), (3, 6846328), (4, 5134746), (6, 3423164), (8, 2567373), (12, 1711582), (24, 855791), (53, 387528), (67, 306552), (106, 193764), (134, 153276), (159, 129176), (201, 102184), (212, 96882), (241, 85224), (268, 76638), (318, 64588), (402, 51092), (424, 48441), (482, 42612), (536, 38319), (636, 32294), (723, 28408), (804, 25546), (964, 21306), (1272, 16147), (1446, 14204), (1608, 12773), (1928, 10653), (2892, 7102), (3551, 5784)]