20754909

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19379}}^1$

素因数の和:19409

約数の個数: 24

約数和(自身を含む): 36279360

約数和(自身を除く): 15524451

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19379, 58137, 135653, 174411, 329443, 406959, 988329, 1220877, 2306101, 2964987, 6918303, 20754909]

約数ペア:

[(1, 20754909), (3, 6918303), (7, 2964987), (9, 2306101), (17, 1220877), (21, 988329), (51, 406959), (63, 329443), (119, 174411), (153, 135653), (357, 58137), (1071, 19379)]