21167360

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:763

約数の個数: 72

約数和(自身を含む): 52980480

約数和(自身を除く): 31813120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 719, 736, 920, 1280, 1438, 1472, 1840, 2876, 2944, 3595, 3680, 5752, 5888, 7190, 7360, 11504, 14380, 14720, 16537, 23008, 28760, 29440, 33074, 46016, 57520, 66148, 82685, 92032, 115040, 132296, 165370, 184064, 230080, 264592, 330740, 460160, 529184, 661480, 920320, 1058368, 1322960, 2116736, 2645920, 4233472, 5291840, 10583680, 21167360]

約数ペア:

[(1, 21167360), (2, 10583680), (4, 5291840), (5, 4233472), (8, 2645920), (10, 2116736), (16, 1322960), (20, 1058368), (23, 920320), (32, 661480), (40, 529184), (46, 460160), (64, 330740), (80, 264592), (92, 230080), (115, 184064), (128, 165370), (160, 132296), (184, 115040), (230, 92032), (256, 82685), (320, 66148), (368, 57520), (460, 46016), (640, 33074), (719, 29440), (736, 28760), (920, 23008), (1280, 16537), (1438, 14720), (1472, 14380), (1840, 11504), (2876, 7360), (2944, 7190), (3595, 5888), (3680, 5752)]