18358893

素因数分解:

$3^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 32288256

約数和(自身を除く): 13929363

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 243, 251, 301, 387, 567, 753, 903, 1161, 1701, 1757, 2259, 2709, 3483, 5271, 6777, 8127, 10449, 10793, 15813, 20331, 24381, 32379, 47439, 60993, 73143, 75551, 97137, 142317, 226653, 291411, 426951, 679959, 874233, 2039877, 2622699, 6119631, 18358893]

約数ペア:

[(1, 18358893), (3, 6119631), (7, 2622699), (9, 2039877), (21, 874233), (27, 679959), (43, 426951), (63, 291411), (81, 226653), (129, 142317), (189, 97137), (243, 75551), (251, 73143), (301, 60993), (387, 47439), (567, 32379), (753, 24381), (903, 20331), (1161, 15813), (1701, 10793), (1757, 10449), (2259, 8127), (2709, 6777), (3483, 5271)]