20993936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 43657920

約数和(自身を除く): 22663984

約数列:

[1, 2, 4, 8, 16, 19, 38, 53, 76, 106, 152, 212, 304, 424, 848, 1007, 1303, 2014, 2606, 4028, 5212, 8056, 10424, 16112, 20848, 24757, 49514, 69059, 99028, 138118, 198056, 276236, 396112, 552472, 1104944, 1312121, 2624242, 5248484, 10496968, 20993936]

約数ペア:

[(1, 20993936), (2, 10496968), (4, 5248484), (8, 2624242), (16, 1312121), (19, 1104944), (38, 552472), (53, 396112), (76, 276236), (106, 198056), (152, 138118), (212, 99028), (304, 69059), (424, 49514), (848, 24757), (1007, 20848), (1303, 16112), (2014, 10424), (2606, 8056), (4028, 5212)]