78121521

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{991}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 119159040

約数和(自身を除く): 41037519

約数列:

[1, 3, 9, 19, 57, 171, 461, 991, 1383, 2973, 4149, 8759, 8919, 18829, 26277, 56487, 78831, 169461, 456851, 1370553, 4111659, 8680169, 26040507, 78121521]

約数ペア:

[(1, 78121521), (3, 26040507), (9, 8680169), (19, 4111659), (57, 1370553), (171, 456851), (461, 169461), (991, 78831), (1383, 56487), (2973, 26277), (4149, 18829), (8759, 8919)]