21581704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5119}}^1$

素因数の和:5173

約数の個数: 32

約数和(自身を含む): 44236800

約数和(自身を除く): 22655096

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 5119, 10238, 20476, 40952, 87023, 158689, 174046, 317378, 348092, 634756, 696184, 1269512, 2697713, 5395426, 10790852, 21581704]

約数ペア:

[(1, 21581704), (2, 10790852), (4, 5395426), (8, 2697713), (17, 1269512), (31, 696184), (34, 634756), (62, 348092), (68, 317378), (124, 174046), (136, 158689), (248, 87023), (527, 40952), (1054, 20476), (2108, 10238), (4216, 5119)]