19663928

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{59951}}^1$

素因数の和:59998

約数の個数: 16

約数和(自身を含む): 37769760

約数和(自身を除く): 18105832

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 59951, 119902, 239804, 479608, 2457991, 4915982, 9831964, 19663928]

約数ペア:

[(1, 19663928), (2, 9831964), (4, 4915982), (8, 2457991), (41, 479608), (82, 239804), (164, 119902), (328, 59951)]