21129740064

素因数分解:

$2^5\times 3^2\times {\mathrm{149}}^1\times {\mathrm{492397}}^1$

素因数の和:492562

約数の個数: 72

約数和(自身を含む): 60491094300

約数和(自身を除く): 39361354236

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 149, 288, 298, 447, 596, 894, 1192, 1341, 1788, 2384, 2682, 3576, 4768, 5364, 7152, 10728, 14304, 21456, 42912, 492397, 984794, 1477191, 1969588, 2954382, 3939176, 4431573, 5908764, 7878352, 8863146, 11817528, 15756704, 17726292, 23635056, 35452584, 47270112, 70905168, 73367153, 141810336, 146734306, 220101459, 293468612, 440202918, 586937224, 660304377, 880405836, 1173874448, 1320608754, 1760811672, 2347748896, 2641217508, 3521623344, 5282435016, 7043246688, 10564870032, 21129740064]

約数ペア:

[(1, 21129740064), (2, 10564870032), (3, 7043246688), (4, 5282435016), (6, 3521623344), (8, 2641217508), (9, 2347748896), (12, 1760811672), (16, 1320608754), (18, 1173874448), (24, 880405836), (32, 660304377), (36, 586937224), (48, 440202918), (72, 293468612), (96, 220101459), (144, 146734306), (149, 141810336), (288, 73367153), (298, 70905168), (447, 47270112), (596, 35452584), (894, 23635056), (1192, 17726292), (1341, 15756704), (1788, 11817528), (2384, 8863146), (2682, 7878352), (3576, 5908764), (4768, 4431573), (5364, 3939176), (7152, 2954382), (10728, 1969588), (14304, 1477191), (21456, 984794), (42912, 492397)]