21749630

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 26720770

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 343, 373, 490, 595, 686, 746, 833, 1190, 1666, 1715, 1865, 2611, 3430, 3730, 4165, 5222, 5831, 6341, 8330, 11662, 12682, 13055, 18277, 26110, 29155, 31705, 36554, 44387, 58310, 63410, 88774, 91385, 127939, 182770, 221935, 255878, 310709, 443870, 621418, 639695, 1279390, 1553545, 2174963, 3107090, 4349926, 10874815, 21749630]

約数ペア:

[(1, 21749630), (2, 10874815), (5, 4349926), (7, 3107090), (10, 2174963), (14, 1553545), (17, 1279390), (34, 639695), (35, 621418), (49, 443870), (70, 310709), (85, 255878), (98, 221935), (119, 182770), (170, 127939), (238, 91385), (245, 88774), (343, 63410), (373, 58310), (490, 44387), (595, 36554), (686, 31705), (746, 29155), (833, 26110), (1190, 18277), (1666, 13055), (1715, 12682), (1865, 11662), (2611, 8330), (3430, 6341), (3730, 5831), (4165, 5222)]