20217972

素因数分解:

$2^2\times 3^1\times {\mathrm{241}}^1\times {\mathrm{6991}}^1$

素因数の和:7239

約数の個数: 24

約数和(自身を含む): 47377792

約数和(自身を除く): 27159820

約数列:

[1, 2, 3, 4, 6, 12, 241, 482, 723, 964, 1446, 2892, 6991, 13982, 20973, 27964, 41946, 83892, 1684831, 3369662, 5054493, 6739324, 10108986, 20217972]

約数ペア:

[(1, 20217972), (2, 10108986), (3, 6739324), (4, 5054493), (6, 3369662), (12, 1684831), (241, 83892), (482, 41946), (723, 27964), (964, 20973), (1446, 13982), (2892, 6991)]