21899757

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{379}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 12245523

約数列:

[1, 3, 11, 17, 33, 51, 103, 187, 309, 379, 561, 1133, 1137, 1751, 3399, 4169, 5253, 6443, 12507, 19261, 19329, 39037, 57783, 70873, 117111, 212619, 429407, 663629, 1288221, 1990887, 7299919, 21899757]

約数ペア:

[(1, 21899757), (3, 7299919), (11, 1990887), (17, 1288221), (33, 663629), (51, 429407), (103, 212619), (187, 117111), (309, 70873), (379, 57783), (561, 39037), (1133, 19329), (1137, 19261), (1751, 12507), (3399, 6443), (4169, 5253)]