13858209

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{5519}}^1$

素因数の和:5562

約数の個数: 20

約数和(自身を含む): 21373440

約数和(自身を除く): 7515231

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 5519, 16557, 49671, 149013, 171089, 447039, 513267, 1539801, 4619403, 13858209]

約数ペア:

[(1, 13858209), (3, 4619403), (9, 1539801), (27, 513267), (31, 447039), (81, 171089), (93, 149013), (279, 49671), (837, 16557), (2511, 5519)]