202020639

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^2\times {\mathrm{421}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 288860688

約数和(自身を除く): 86840049

約数列:

[1, 3, 17, 51, 97, 291, 421, 1263, 1649, 4947, 7157, 9409, 21471, 28227, 40837, 122511, 159953, 479859, 694229, 2082687, 3961189, 11883567, 67340213, 202020639]

約数ペア:

[(1, 202020639), (3, 67340213), (17, 11883567), (51, 3961189), (97, 2082687), (291, 694229), (421, 479859), (1263, 159953), (1649, 122511), (4947, 40837), (7157, 28227), (9409, 21471)]