261391389

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{10211}}^1$

素因数の和:10297

約数の個数: 32

約数和(自身を含む): 423512064

約数和(自身を除く): 162120675

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 1113, 1219, 3657, 8533, 10211, 25599, 30633, 71477, 214431, 234853, 541183, 704559, 1623549, 1643971, 3788281, 4931913, 11364843, 12447209, 37341627, 87130463, 261391389]

約数ペア:

[(1, 261391389), (3, 87130463), (7, 37341627), (21, 12447209), (23, 11364843), (53, 4931913), (69, 3788281), (159, 1643971), (161, 1623549), (371, 704559), (483, 541183), (1113, 234853), (1219, 214431), (3657, 71477), (8533, 30633), (10211, 25599)]