21382504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18691}}^1$

素因数の和:18721

約数の個数: 32

約数和(自身を含む): 47103840

約数和(自身を除く): 25721336

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18691, 37382, 74764, 149528, 205601, 242983, 411202, 485966, 822404, 971932, 1644808, 1943864, 2672813, 5345626, 10691252, 21382504]

約数ペア:

[(1, 21382504), (2, 10691252), (4, 5345626), (8, 2672813), (11, 1943864), (13, 1644808), (22, 971932), (26, 822404), (44, 485966), (52, 411202), (88, 242983), (104, 205601), (143, 149528), (286, 74764), (572, 37382), (1144, 18691)]