18673137

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 32343168

約数和(自身を除く): 13670031

約数列:

[1, 3, 7, 9, 21, 43, 61, 63, 113, 129, 183, 301, 339, 387, 427, 549, 791, 903, 1017, 1281, 2373, 2623, 2709, 3843, 4859, 6893, 7119, 7869, 14577, 18361, 20679, 23607, 34013, 43731, 48251, 55083, 62037, 102039, 144753, 165249, 296399, 306117, 434259, 889197, 2074793, 2667591, 6224379, 18673137]

約数ペア:

[(1, 18673137), (3, 6224379), (7, 2667591), (9, 2074793), (21, 889197), (43, 434259), (61, 306117), (63, 296399), (113, 165249), (129, 144753), (183, 102039), (301, 62037), (339, 55083), (387, 48251), (427, 43731), (549, 34013), (791, 23607), (903, 20679), (1017, 18361), (1281, 14577), (2373, 7869), (2623, 7119), (2709, 6893), (3843, 4859)]