21829556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 47241600

約数和(自身を除く): 25412044

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1036, 1109, 1406, 2218, 2812, 4436, 4921, 7763, 9842, 15526, 19684, 21071, 31052, 41033, 42142, 82066, 84284, 147497, 164132, 287231, 294994, 574462, 589988, 779627, 1148924, 1559254, 3118508, 5457389, 10914778, 21829556]

約数ペア:

[(1, 21829556), (2, 10914778), (4, 5457389), (7, 3118508), (14, 1559254), (19, 1148924), (28, 779627), (37, 589988), (38, 574462), (74, 294994), (76, 287231), (133, 164132), (148, 147497), (259, 84284), (266, 82066), (518, 42142), (532, 41033), (703, 31052), (1036, 21071), (1109, 19684), (1406, 15526), (2218, 9842), (2812, 7763), (4436, 4921)]