20068587

素因数分解:

$3^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 17947413

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 197, 231, 297, 343, 441, 539, 591, 693, 1029, 1323, 1379, 1617, 1773, 2079, 2167, 3087, 3773, 4137, 4851, 5319, 6501, 9261, 9653, 11319, 12411, 14553, 15169, 19503, 28959, 33957, 37233, 45507, 58509, 67571, 86877, 101871, 106183, 136521, 202713, 260631, 318549, 409563, 608139, 743281, 955647, 1824417, 2229843, 2866941, 6689529, 20068587]

約数ペア:

[(1, 20068587), (3, 6689529), (7, 2866941), (9, 2229843), (11, 1824417), (21, 955647), (27, 743281), (33, 608139), (49, 409563), (63, 318549), (77, 260631), (99, 202713), (147, 136521), (189, 106183), (197, 101871), (231, 86877), (297, 67571), (343, 58509), (441, 45507), (539, 37233), (591, 33957), (693, 28959), (1029, 19503), (1323, 15169), (1379, 14553), (1617, 12411), (1773, 11319), (2079, 9653), (2167, 9261), (3087, 6501), (3773, 5319), (4137, 4851)]