25498221

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 15109779

約数列:

[1, 3, 7, 21, 29, 87, 149, 203, 281, 447, 609, 843, 1043, 1967, 3129, 4321, 5901, 8149, 12963, 24447, 30247, 41869, 57043, 90741, 125607, 171129, 293083, 879249, 1214201, 3642603, 8499407, 25498221]

約数ペア:

[(1, 25498221), (3, 8499407), (7, 3642603), (21, 1214201), (29, 879249), (87, 293083), (149, 171129), (203, 125607), (281, 90741), (447, 57043), (609, 41869), (843, 30247), (1043, 24447), (1967, 12963), (3129, 8149), (4321, 5901)]