83997221

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 115240320

約数和(自身を除く): 31243099

約数列:

[1, 7, 11, 17, 49, 77, 89, 103, 119, 187, 539, 623, 721, 833, 979, 1133, 1309, 1513, 1751, 4361, 5047, 6853, 7931, 9163, 9167, 10591, 12257, 16643, 19261, 47971, 55517, 64169, 74137, 85799, 100837, 116501, 134827, 155839, 449183, 705859, 815507, 943789, 1090873, 1714229, 4941013, 7636111, 11999603, 83997221]

約数ペア:

[(1, 83997221), (7, 11999603), (11, 7636111), (17, 4941013), (49, 1714229), (77, 1090873), (89, 943789), (103, 815507), (119, 705859), (187, 449183), (539, 155839), (623, 134827), (721, 116501), (833, 100837), (979, 85799), (1133, 74137), (1309, 64169), (1513, 55517), (1751, 47971), (4361, 19261), (5047, 16643), (6853, 12257), (7931, 10591), (9163, 9167)]