21887517

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5879}}^1$

素因数の和:5972

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 9441123

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5879, 17637, 99943, 299829, 429167, 1287501, 7295839, 21887517]

約数ペア:

[(1, 21887517), (3, 7295839), (17, 1287501), (51, 429167), (73, 299829), (219, 99943), (1241, 17637), (3723, 5879)]