1281402381

素因数分解:

$3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1867}}^1$

素因数の和:1943

約数の個数: 64

約数和(自身を含む): 2151936000

約数和(自身を除く): 870533619

約数列:

[1, 3, 7, 21, 23, 29, 49, 69, 87, 147, 161, 203, 343, 483, 609, 667, 1029, 1127, 1421, 1867, 2001, 3381, 4263, 4669, 5601, 7889, 9947, 13069, 14007, 23667, 29841, 32683, 39207, 42941, 54143, 91483, 98049, 128823, 162429, 228781, 274449, 300587, 379001, 640381, 686343, 901761, 1137003, 1245289, 1921143, 2104109, 2653007, 3735867, 6312327, 7959021, 8717023, 14728763, 18571049, 26151069, 44186289, 55713147, 61019161, 183057483, 427134127, 1281402381]

約数ペア:

[(1, 1281402381), (3, 427134127), (7, 183057483), (21, 61019161), (23, 55713147), (29, 44186289), (49, 26151069), (69, 18571049), (87, 14728763), (147, 8717023), (161, 7959021), (203, 6312327), (343, 3735867), (483, 2653007), (609, 2104109), (667, 1921143), (1029, 1245289), (1127, 1137003), (1421, 901761), (1867, 686343), (2001, 640381), (3381, 379001), (4263, 300587), (4669, 274449), (5601, 228781), (7889, 162429), (9947, 128823), (13069, 98049), (14007, 91483), (23667, 54143), (29841, 42941), (32683, 39207)]