21230013

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16573}}^1$

素因数の和:16644

約数の個数: 16

約数和(自身を含む): 32882816

約数和(自身を除く): 11652803

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16573, 49719, 116011, 348033, 1010953, 3032859, 7076671, 21230013]

約数ペア:

[(1, 21230013), (3, 7076671), (7, 3032859), (21, 1010953), (61, 348033), (183, 116011), (427, 49719), (1281, 16573)]