21971196

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15649}}^1$

素因数の和:15675

約数の個数: 48

約数和(自身を含む): 61348000

約数和(自身を除く): 39376804

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15649, 31298, 46947, 62596, 93894, 140841, 187788, 203437, 281682, 406874, 422523, 563364, 610311, 813748, 845046, 1220622, 1690092, 1830933, 2441244, 3661866, 5492799, 7323732, 10985598, 21971196]

約数ペア:

[(1, 21971196), (2, 10985598), (3, 7323732), (4, 5492799), (6, 3661866), (9, 2441244), (12, 1830933), (13, 1690092), (18, 1220622), (26, 845046), (27, 813748), (36, 610311), (39, 563364), (52, 422523), (54, 406874), (78, 281682), (108, 203437), (117, 187788), (156, 140841), (234, 93894), (351, 62596), (468, 46947), (702, 31298), (1404, 15649)]