1287720147

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{6427}}^1$

素因数の和:6520

約数の個数: 48

約数和(自身を含む): 2110440960

約数和(自身を除く): 822720813

約数列:

[1, 3, 7, 21, 29, 47, 49, 87, 141, 147, 203, 329, 609, 987, 1363, 1421, 2303, 4089, 4263, 6427, 6909, 9541, 19281, 28623, 44989, 66787, 134967, 186383, 200361, 302069, 314923, 559149, 906207, 944769, 1304681, 2114483, 3914043, 6343449, 8760001, 9132767, 14801381, 26280003, 27398301, 44404143, 61320007, 183960021, 429240049, 1287720147]

約数ペア:

[(1, 1287720147), (3, 429240049), (7, 183960021), (21, 61320007), (29, 44404143), (47, 27398301), (49, 26280003), (87, 14801381), (141, 9132767), (147, 8760001), (203, 6343449), (329, 3914043), (609, 2114483), (987, 1304681), (1363, 944769), (1421, 906207), (2303, 559149), (4089, 314923), (4263, 302069), (6427, 200361), (6909, 186383), (9541, 134967), (19281, 66787), (28623, 44989)]