21633640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77263}}^1$

素因数の和:77281

約数の個数: 32

約数和(自身を含む): 55630080

約数和(自身を除く): 33996440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77263, 154526, 309052, 386315, 540841, 618104, 772630, 1081682, 1545260, 2163364, 2704205, 3090520, 4326728, 5408410, 10816820, 21633640]

約数ペア:

[(1, 21633640), (2, 10816820), (4, 5408410), (5, 4326728), (7, 3090520), (8, 2704205), (10, 2163364), (14, 1545260), (20, 1081682), (28, 772630), (35, 618104), (40, 540841), (56, 386315), (70, 309052), (140, 154526), (280, 77263)]