31605987

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{701}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 51217920

約数和(自身を除く): 19611933

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 701, 791, 2103, 2147, 2373, 4907, 6441, 13319, 14721, 15029, 39957, 45087, 79213, 93233, 237639, 279699, 554491, 1505047, 1663473, 4515141, 10535329, 31605987]

約数ペア:

[(1, 31605987), (3, 10535329), (7, 4515141), (19, 1663473), (21, 1505047), (57, 554491), (113, 279699), (133, 237639), (339, 93233), (399, 79213), (701, 45087), (791, 39957), (2103, 15029), (2147, 14721), (2373, 13319), (4907, 6441)]