21303244

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 42130368

約数和(自身を除く): 20827124

約数列:

[1, 2, 4, 17, 23, 34, 46, 53, 68, 92, 106, 212, 257, 391, 514, 782, 901, 1028, 1219, 1564, 1802, 2438, 3604, 4369, 4876, 5911, 8738, 11822, 13621, 17476, 20723, 23644, 27242, 41446, 54484, 82892, 100487, 200974, 231557, 313283, 401948, 463114, 626566, 926228, 1253132, 5325811, 10651622, 21303244]

約数ペア:

[(1, 21303244), (2, 10651622), (4, 5325811), (17, 1253132), (23, 926228), (34, 626566), (46, 463114), (53, 401948), (68, 313283), (92, 231557), (106, 200974), (212, 100487), (257, 82892), (391, 54484), (514, 41446), (782, 27242), (901, 23644), (1028, 20723), (1219, 17476), (1564, 13621), (1802, 11822), (2438, 8738), (3604, 5911), (4369, 4876)]