21849520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3547}}^1$

素因数の和:3578

約数の個数: 80

約数和(自身を含む): 63353088

約数和(自身を除く): 41503568

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3547, 6160, 7094, 14188, 17735, 24829, 28376, 35470, 39017, 49658, 56752, 70940, 78034, 99316, 124145, 141880, 156068, 195085, 198632, 248290, 273119, 283760, 312136, 390170, 397264, 496580, 546238, 624272, 780340, 993160, 1092476, 1365595, 1560680, 1986320, 2184952, 2731190, 3121360, 4369904, 5462380, 10924760, 21849520]

約数ペア:

[(1, 21849520), (2, 10924760), (4, 5462380), (5, 4369904), (7, 3121360), (8, 2731190), (10, 2184952), (11, 1986320), (14, 1560680), (16, 1365595), (20, 1092476), (22, 993160), (28, 780340), (35, 624272), (40, 546238), (44, 496580), (55, 397264), (56, 390170), (70, 312136), (77, 283760), (80, 273119), (88, 248290), (110, 198632), (112, 195085), (140, 156068), (154, 141880), (176, 124145), (220, 99316), (280, 78034), (308, 70940), (385, 56752), (440, 49658), (560, 39017), (616, 35470), (770, 28376), (880, 24829), (1232, 17735), (1540, 14188), (3080, 7094), (3547, 6160)]