21000314590

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1\times {\mathrm{28393}}^1$

素因数の和:30436

約数の個数: 32

約数和(自身を含む): 38842992000

約数和(自身を除く): 17842677410

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 1999, 3998, 9995, 19990, 28393, 56786, 73963, 141965, 147926, 283930, 369815, 739630, 1050541, 2101082, 5252705, 10505410, 56757607, 113515214, 283788035, 567576070, 2100031459, 4200062918, 10500157295, 21000314590]

約数ペア:

[(1, 21000314590), (2, 10500157295), (5, 4200062918), (10, 2100031459), (37, 567576070), (74, 283788035), (185, 113515214), (370, 56757607), (1999, 10505410), (3998, 5252705), (9995, 2101082), (19990, 1050541), (28393, 739630), (56786, 369815), (73963, 283930), (141965, 147926)]