16649171

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 23639040

約数和(自身を除く): 6989869

約数列:

[1, 7, 11, 17, 23, 49, 77, 79, 119, 161, 187, 253, 391, 539, 553, 833, 869, 1127, 1309, 1343, 1771, 1817, 2737, 3871, 4301, 6083, 9163, 9401, 12397, 12719, 14773, 19159, 19987, 30107, 30889, 42581, 65807, 89033, 103411, 139909, 210749, 216223, 339779, 723877, 979363, 1513561, 2378453, 16649171]

約数ペア:

[(1, 16649171), (7, 2378453), (11, 1513561), (17, 979363), (23, 723877), (49, 339779), (77, 216223), (79, 210749), (119, 139909), (161, 103411), (187, 89033), (253, 65807), (391, 42581), (539, 30889), (553, 30107), (833, 19987), (869, 19159), (1127, 14773), (1309, 12719), (1343, 12397), (1771, 9401), (1817, 9163), (2737, 6083), (3871, 4301)]