40820493

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 65894400

約数和(自身を除く): 25073907

約数列:

[1, 3, 7, 19, 21, 57, 133, 263, 389, 399, 789, 1167, 1841, 2723, 4997, 5523, 7391, 8169, 14991, 22173, 34979, 51737, 102307, 104937, 155211, 306921, 716149, 1943833, 2148447, 5831499, 13606831, 40820493]

約数ペア:

[(1, 40820493), (3, 13606831), (7, 5831499), (19, 2148447), (21, 1943833), (57, 716149), (133, 306921), (263, 155211), (389, 104937), (399, 102307), (789, 51737), (1167, 34979), (1841, 22173), (2723, 14991), (4997, 8169), (5523, 7391)]