81900963

素因数分解:

$3^{10}\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:122

約数の個数: 44

約数和(自身を含む): 131088040

約数和(自身を除く): 49187077

約数列:

[1, 3, 9, 19, 27, 57, 73, 81, 171, 219, 243, 513, 657, 729, 1387, 1539, 1971, 2187, 4161, 4617, 5913, 6561, 12483, 13851, 17739, 19683, 37449, 41553, 53217, 59049, 112347, 124659, 159651, 337041, 373977, 478953, 1011123, 1121931, 1436859, 3033369, 4310577, 9100107, 27300321, 81900963]

約数ペア:

[(1, 81900963), (3, 27300321), (9, 9100107), (19, 4310577), (27, 3033369), (57, 1436859), (73, 1121931), (81, 1011123), (171, 478953), (219, 373977), (243, 337041), (513, 159651), (657, 124659), (729, 112347), (1387, 59049), (1539, 53217), (1971, 41553), (2187, 37449), (4161, 19683), (4617, 17739), (5913, 13851), (6561, 12483)]