20510358

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 25684266

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 74, 111, 222, 227, 407, 454, 681, 814, 1221, 1362, 1369, 2442, 2497, 2738, 4107, 4994, 7491, 8214, 8399, 14982, 15059, 16798, 25197, 30118, 45177, 50394, 90354, 92389, 184778, 277167, 310763, 554334, 621526, 932289, 1864578, 3418393, 6836786, 10255179, 20510358]

約数ペア:

[(1, 20510358), (2, 10255179), (3, 6836786), (6, 3418393), (11, 1864578), (22, 932289), (33, 621526), (37, 554334), (66, 310763), (74, 277167), (111, 184778), (222, 92389), (227, 90354), (407, 50394), (454, 45177), (681, 30118), (814, 25197), (1221, 16798), (1362, 15059), (1369, 14982), (2442, 8399), (2497, 8214), (2738, 7491), (4107, 4994)]