28156780821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{97841}}^1$

素因数の和:98061

約数の個数: 32

約数和(自身を含む): 41553888768

約数和(自身を除く): 13397107947

約数列:

[1, 3, 13, 39, 47, 141, 157, 471, 611, 1833, 2041, 6123, 7379, 22137, 95927, 97841, 287781, 293523, 1271933, 3815799, 4598527, 13795581, 15361037, 46083111, 59780851, 179342553, 199693481, 599080443, 721968739, 2165906217, 9385593607, 28156780821]

約数ペア:

[(1, 28156780821), (3, 9385593607), (13, 2165906217), (39, 721968739), (47, 599080443), (141, 199693481), (157, 179342553), (471, 59780851), (611, 46083111), (1833, 15361037), (2041, 13795581), (6123, 4598527), (7379, 3815799), (22137, 1271933), (95927, 293523), (97841, 287781)]