20019958

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1031}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 36656640

約数和(自身を除く): 16636682

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1031, 1387, 2062, 2774, 7217, 9709, 14434, 19418, 19589, 39178, 75263, 137123, 150526, 274246, 526841, 1053682, 1429997, 2859994, 10009979, 20019958]

約数ペア:

[(1, 20019958), (2, 10009979), (7, 2859994), (14, 1429997), (19, 1053682), (38, 526841), (73, 274246), (133, 150526), (146, 137123), (266, 75263), (511, 39178), (1022, 19589), (1031, 19418), (1387, 14434), (2062, 9709), (2774, 7217)]