19951071

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13381}}^1$

素因数の和:13462

約数の個数: 16

約数和(自身を含む): 30832128

約数和(自身を除く): 10881057

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13381, 40143, 93667, 281001, 950051, 2850153, 6650357, 19951071]

約数ペア:

[(1, 19951071), (3, 6650357), (7, 2850153), (21, 950051), (71, 281001), (213, 93667), (497, 40143), (1491, 13381)]