20834415

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7349}}^1$

素因数の和:7373

約数の個数: 40

約数和(自身を含む): 42688800

約数和(自身を除く): 21854385

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7349, 22047, 36745, 51443, 66141, 110235, 154329, 198423, 257215, 330705, 462987, 595269, 771645, 992115, 1388961, 2314935, 2976345, 4166883, 6944805, 20834415]

約数ペア:

[(1, 20834415), (3, 6944805), (5, 4166883), (7, 2976345), (9, 2314935), (15, 1388961), (21, 992115), (27, 771645), (35, 595269), (45, 462987), (63, 330705), (81, 257215), (105, 198423), (135, 154329), (189, 110235), (315, 66141), (405, 51443), (567, 36745), (945, 22047), (2835, 7349)]