21353717

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1483}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 28421568

約数和(自身を除く): 7067851

約数列:

[1, 7, 11, 17, 77, 119, 121, 187, 847, 1309, 1483, 2057, 10381, 14399, 16313, 25211, 114191, 176477, 179443, 277321, 1256101, 1941247, 3050531, 21353717]

約数ペア:

[(1, 21353717), (7, 3050531), (11, 1941247), (17, 1256101), (77, 277321), (119, 179443), (121, 176477), (187, 114191), (847, 25211), (1309, 16313), (1483, 14399), (2057, 10381)]