21254901

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6113}}^1$

素因数の和:6196

約数の個数: 16

約数和(自身を含む): 30325440

約数和(自身を除く): 9070539

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 6113, 18339, 116147, 348441, 372893, 1118679, 7084967, 21254901]

約数ペア:

[(1, 21254901), (3, 7084967), (19, 1118679), (57, 372893), (61, 348441), (183, 116147), (1159, 18339), (3477, 6113)]