20954986

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 35985600

約数和(自身を除く): 15030614

約数列:

[1, 2, 13, 19, 26, 38, 169, 247, 251, 338, 494, 502, 2197, 3211, 3263, 4394, 4769, 6422, 6526, 9538, 41743, 42419, 61997, 83486, 84838, 123994, 551447, 805961, 1102894, 1611922, 10477493, 20954986]

約数ペア:

[(1, 20954986), (2, 10477493), (13, 1611922), (19, 1102894), (26, 805961), (38, 551447), (169, 123994), (247, 84838), (251, 83486), (338, 61997), (494, 42419), (502, 41743), (2197, 9538), (3211, 6526), (3263, 6422), (4394, 4769)]