128723751

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{84631}}^1$

素因数の和:84663

約数の個数: 18

約数和(自身を含む): 201339528

約数和(自身を除く): 72615777

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 84631, 253893, 761679, 1100203, 3300609, 9901827, 14302639, 42907917, 128723751]

約数ペア:

[(1, 128723751), (3, 42907917), (9, 14302639), (13, 9901827), (39, 3300609), (117, 1100203), (169, 761679), (507, 253893), (1521, 84631)]