20722116

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 51601536

約数和(自身を除く): 30879420

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 157, 204, 314, 471, 628, 647, 942, 1294, 1884, 1941, 2588, 2669, 3882, 5338, 7764, 8007, 10676, 10999, 16014, 21998, 32028, 32997, 43996, 65994, 101579, 131988, 203158, 304737, 406316, 609474, 1218948, 1726843, 3453686, 5180529, 6907372, 10361058, 20722116]

約数ペア:

[(1, 20722116), (2, 10361058), (3, 6907372), (4, 5180529), (6, 3453686), (12, 1726843), (17, 1218948), (34, 609474), (51, 406316), (68, 304737), (102, 203158), (157, 131988), (204, 101579), (314, 65994), (471, 43996), (628, 32997), (647, 32028), (942, 21998), (1294, 16014), (1884, 10999), (1941, 10676), (2588, 8007), (2669, 7764), (3882, 5338)]