28955646

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 64471680

約数和(自身を除く): 35516034

約数列:

[1, 2, 3, 6, 9, 18, 71, 139, 142, 163, 213, 278, 326, 417, 426, 489, 639, 834, 978, 1251, 1278, 1467, 2502, 2934, 9869, 11573, 19738, 22657, 23146, 29607, 34719, 45314, 59214, 67971, 69438, 88821, 104157, 135942, 177642, 203913, 208314, 407826, 1608647, 3217294, 4825941, 9651882, 14477823, 28955646]

約数ペア:

[(1, 28955646), (2, 14477823), (3, 9651882), (6, 4825941), (9, 3217294), (18, 1608647), (71, 407826), (139, 208314), (142, 203913), (163, 177642), (213, 135942), (278, 104157), (326, 88821), (417, 69438), (426, 67971), (489, 59214), (639, 45314), (834, 34719), (978, 29607), (1251, 23146), (1278, 22657), (1467, 19738), (2502, 11573), (2934, 9869)]