505904021

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{21089}}^1$

素因数の和:21268

約数の個数: 16

約数和(自身を含む): 607392000

約数和(自身を除く): 101487979

約数列:

[1, 7, 23, 149, 161, 1043, 3427, 21089, 23989, 147623, 485047, 3142261, 3395329, 21995827, 72272003, 505904021]

約数ペア:

[(1, 505904021), (7, 72272003), (23, 21995827), (149, 3395329), (161, 3142261), (1043, 485047), (3427, 147623), (21089, 23989)]