21946876

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 24792068

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 53, 92, 106, 161, 212, 322, 371, 643, 644, 742, 1219, 1286, 1484, 2438, 2572, 4501, 4876, 8533, 9002, 14789, 17066, 18004, 29578, 34079, 34132, 59156, 68158, 103523, 136316, 207046, 238553, 414092, 477106, 783817, 954212, 1567634, 3135268, 5486719, 10973438, 21946876]

約数ペア:

[(1, 21946876), (2, 10973438), (4, 5486719), (7, 3135268), (14, 1567634), (23, 954212), (28, 783817), (46, 477106), (53, 414092), (92, 238553), (106, 207046), (161, 136316), (212, 103523), (322, 68158), (371, 59156), (643, 34132), (644, 34079), (742, 29578), (1219, 18004), (1286, 17066), (1484, 14789), (2438, 9002), (2572, 8533), (4501, 4876)]