77289891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2123

約数の個数: 32

約数和(自身を含む): 125314560

約数和(自身を除く): 48024669

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 679, 1843, 1997, 2037, 5529, 5991, 12901, 13979, 37943, 38703, 41937, 113829, 193709, 265601, 581127, 796803, 1355963, 3680471, 4067889, 11041413, 25763297, 77289891]

約数ペア:

[(1, 77289891), (3, 25763297), (7, 11041413), (19, 4067889), (21, 3680471), (57, 1355963), (97, 796803), (133, 581127), (291, 265601), (399, 193709), (679, 113829), (1843, 41937), (1997, 38703), (2037, 37943), (5529, 13979), (5991, 12901)]