20187972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{80111}}^1$

素因数の和:80128

約数の個数: 36

約数和(自身を含む): 58321536

約数和(自身を除く): 38133564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 80111, 160222, 240333, 320444, 480666, 560777, 720999, 961332, 1121554, 1441998, 1682331, 2243108, 2883996, 3364662, 5046993, 6729324, 10093986, 20187972]

約数ペア:

[(1, 20187972), (2, 10093986), (3, 6729324), (4, 5046993), (6, 3364662), (7, 2883996), (9, 2243108), (12, 1682331), (14, 1441998), (18, 1121554), (21, 961332), (28, 720999), (36, 560777), (42, 480666), (63, 320444), (84, 240333), (126, 160222), (252, 80111)]