20638422

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 32583978

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 126, 142, 189, 213, 378, 426, 497, 639, 769, 994, 1278, 1491, 1538, 1917, 2307, 2982, 3834, 4473, 4614, 5383, 6921, 8946, 10766, 13419, 13842, 16149, 20763, 26838, 32298, 41526, 48447, 54599, 96894, 109198, 145341, 163797, 290682, 327594, 382193, 491391, 764386, 982782, 1146579, 1474173, 2293158, 2948346, 3439737, 6879474, 10319211, 20638422]

約数ペア:

[(1, 20638422), (2, 10319211), (3, 6879474), (6, 3439737), (7, 2948346), (9, 2293158), (14, 1474173), (18, 1146579), (21, 982782), (27, 764386), (42, 491391), (54, 382193), (63, 327594), (71, 290682), (126, 163797), (142, 145341), (189, 109198), (213, 96894), (378, 54599), (426, 48447), (497, 41526), (639, 32298), (769, 26838), (994, 20763), (1278, 16149), (1491, 13842), (1538, 13419), (1917, 10766), (2307, 8946), (2982, 6921), (3834, 5383), (4473, 4614)]