28103823

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 36

約数和(自身を含む): 45189144

約数和(自身を除く): 17085321

約数列:

[1, 3, 9, 11, 33, 99, 121, 131, 197, 363, 393, 591, 1089, 1179, 1441, 1773, 2167, 4323, 6501, 12969, 15851, 19503, 23837, 25807, 47553, 71511, 77421, 142659, 214533, 232263, 283877, 851631, 2554893, 3122647, 9367941, 28103823]

約数ペア:

[(1, 28103823), (3, 9367941), (9, 3122647), (11, 2554893), (33, 851631), (99, 283877), (121, 232263), (131, 214533), (197, 142659), (363, 77421), (393, 71511), (591, 47553), (1089, 25807), (1179, 23837), (1441, 19503), (1773, 15851), (2167, 12969), (4323, 6501)]