19771878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1151}}^1$

素因数の和:1572

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 25570842

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 409, 818, 1151, 1227, 2302, 2454, 2863, 3453, 5726, 6906, 8057, 8589, 16114, 17178, 24171, 48342, 470759, 941518, 1412277, 2824554, 3295313, 6590626, 9885939, 19771878]

約数ペア:

[(1, 19771878), (2, 9885939), (3, 6590626), (6, 3295313), (7, 2824554), (14, 1412277), (21, 941518), (42, 470759), (409, 48342), (818, 24171), (1151, 17178), (1227, 16114), (2302, 8589), (2454, 8057), (2863, 6906), (3453, 5726)]