21519894

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^2$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 49803840

約数和(自身を除く): 28283946

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 114, 131, 209, 262, 393, 418, 627, 786, 1254, 1441, 2489, 2882, 4323, 4978, 7467, 8646, 14934, 17161, 27379, 34322, 51483, 54758, 82137, 102966, 164274, 188771, 326059, 377542, 566313, 652118, 978177, 1132626, 1956354, 3586649, 7173298, 10759947, 21519894]

約数ペア:

[(1, 21519894), (2, 10759947), (3, 7173298), (6, 3586649), (11, 1956354), (19, 1132626), (22, 978177), (33, 652118), (38, 566313), (57, 377542), (66, 326059), (114, 188771), (131, 164274), (209, 102966), (262, 82137), (393, 54758), (418, 51483), (627, 34322), (786, 27379), (1254, 17161), (1441, 14934), (2489, 8646), (2882, 7467), (4323, 4978)]