21733040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^2$

素因数の和:414

約数の個数: 60

約数和(自身を含む): 58042416

約数和(自身を除く): 36309376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1970, 2758, 3152, 3940, 5516, 6895, 7880, 11032, 13790, 15760, 22064, 27580, 38809, 55160, 77618, 110320, 155236, 194045, 271663, 310472, 388090, 543326, 620944, 776180, 1086652, 1358315, 1552360, 2173304, 2716630, 3104720, 4346608, 5433260, 10866520, 21733040]

約数ペア:

[(1, 21733040), (2, 10866520), (4, 5433260), (5, 4346608), (7, 3104720), (8, 2716630), (10, 2173304), (14, 1552360), (16, 1358315), (20, 1086652), (28, 776180), (35, 620944), (40, 543326), (56, 388090), (70, 310472), (80, 271663), (112, 194045), (140, 155236), (197, 110320), (280, 77618), (394, 55160), (560, 38809), (788, 27580), (985, 22064), (1379, 15760), (1576, 13790), (1970, 11032), (2758, 7880), (3152, 6895), (3940, 5516)]