18684897

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 31739904

約数和(自身を除く): 13055007

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1721, 3619, 5163, 10857, 12047, 18931, 36141, 56793, 80887, 132517, 242661, 397551, 566209, 889757, 1698627, 2669271, 6228299, 18684897]

約数ペア:

[(1, 18684897), (3, 6228299), (7, 2669271), (11, 1698627), (21, 889757), (33, 566209), (47, 397551), (77, 242661), (141, 132517), (231, 80887), (329, 56793), (517, 36141), (987, 18931), (1551, 12047), (1721, 10857), (3619, 5163)]