21758667

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2371}}^1$

素因数の和:2423

約数の個数: 32

約数和(自身を含む): 36433920

約数和(自身を除く): 14675253

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2371, 3059, 7113, 9177, 16597, 45049, 49791, 54533, 135147, 163599, 315343, 381731, 946029, 1036127, 1145193, 3108381, 7252889, 21758667]

約数ペア:

[(1, 21758667), (3, 7252889), (7, 3108381), (19, 1145193), (21, 1036127), (23, 946029), (57, 381731), (69, 315343), (133, 163599), (161, 135147), (399, 54533), (437, 49791), (483, 45049), (1311, 16597), (2371, 9177), (3059, 7113)]