21603164620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2593}}^1\times {\mathrm{5273}}^1$

素因数の和:7954

約数の個数: 48

約数和(自身を含む): 45967340160

約数和(自身を除く): 24364175540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 2593, 5186, 5273, 10372, 10546, 12965, 21092, 25930, 26365, 51860, 52730, 105460, 204847, 409694, 416567, 819388, 833134, 1024235, 1666268, 2048470, 2082835, 4096940, 4165670, 8331340, 13672889, 27345778, 54691556, 68364445, 136728890, 273457780, 1080158231, 2160316462, 4320632924, 5400791155, 10801582310, 21603164620]

約数ペア:

[(1, 21603164620), (2, 10801582310), (4, 5400791155), (5, 4320632924), (10, 2160316462), (20, 1080158231), (79, 273457780), (158, 136728890), (316, 68364445), (395, 54691556), (790, 27345778), (1580, 13672889), (2593, 8331340), (5186, 4165670), (5273, 4096940), (10372, 2082835), (10546, 2048470), (12965, 1666268), (21092, 1024235), (25930, 833134), (26365, 819388), (51860, 416567), (52730, 409694), (105460, 204847)]