208078353

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{10039}}^1$

素因数の和:10106

約数の個数: 36

約数和(自身を含む): 357102720

約数和(自身を除く): 149024367

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 6909, 10039, 20727, 30117, 70273, 90351, 210819, 471833, 491911, 632457, 1415499, 1475733, 3302831, 4246497, 4427199, 9908493, 23119817, 29725479, 69359451, 208078353]

約数ペア:

[(1, 208078353), (3, 69359451), (7, 29725479), (9, 23119817), (21, 9908493), (47, 4427199), (49, 4246497), (63, 3302831), (141, 1475733), (147, 1415499), (329, 632457), (423, 491911), (441, 471833), (987, 210819), (2303, 90351), (2961, 70273), (6909, 30117), (10039, 20727)]