20864326

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 37029888

約数和(自身を除く): 16165562

約数列:

[1, 2, 7, 14, 41, 82, 163, 223, 287, 326, 446, 574, 1141, 1561, 2282, 3122, 6683, 9143, 13366, 18286, 36349, 46781, 64001, 72698, 93562, 128002, 254443, 508886, 1490309, 2980618, 10432163, 20864326]

約数ペア:

[(1, 20864326), (2, 10432163), (7, 2980618), (14, 1490309), (41, 508886), (82, 254443), (163, 128002), (223, 93562), (287, 72698), (326, 64001), (446, 46781), (574, 36349), (1141, 18286), (1561, 13366), (2282, 9143), (3122, 6683)]