21877793

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1171}}^1$

素因数の和:1352

約数の個数: 16

約数和(自身を含む): 26665344

約数和(自身を除く): 4787551

約数列:

[1, 7, 17, 119, 157, 1099, 1171, 2669, 8197, 18683, 19907, 139349, 183847, 1286929, 3125399, 21877793]

約数ペア:

[(1, 21877793), (7, 3125399), (17, 1286929), (119, 183847), (157, 139349), (1099, 19907), (1171, 18683), (2669, 8197)]