1221566157

素因数分解:

$3^3\times 7^1\times {\mathrm{317}}^1\times {\mathrm{20389}}^1$

素因数の和:20722

約数の個数: 32

約数和(自身を含む): 2074886400

約数和(自身を除く): 853320243

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 317, 951, 2219, 2853, 6657, 8559, 19971, 20389, 59913, 61167, 142723, 183501, 428169, 550503, 1284507, 3853521, 6463313, 19389939, 45243191, 58169817, 135729573, 174509451, 407188719, 1221566157]

約数ペア:

[(1, 1221566157), (3, 407188719), (7, 174509451), (9, 135729573), (21, 58169817), (27, 45243191), (63, 19389939), (189, 6463313), (317, 3853521), (951, 1284507), (2219, 550503), (2853, 428169), (6657, 183501), (8559, 142723), (19971, 61167), (20389, 59913)]