28668409

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 38368512

約数和(自身を除く): 9700103

約数列:

[1, 7, 11, 17, 77, 119, 121, 181, 187, 847, 1267, 1309, 1331, 1991, 2057, 3077, 9317, 13937, 14399, 21539, 21901, 22627, 33847, 153307, 158389, 236929, 240911, 372317, 1686377, 2606219, 4095487, 28668409]

約数ペア:

[(1, 28668409), (7, 4095487), (11, 2606219), (17, 1686377), (77, 372317), (119, 240911), (121, 236929), (181, 158389), (187, 153307), (847, 33847), (1267, 22627), (1309, 21901), (1331, 21539), (1991, 14399), (2057, 13937), (3077, 9317)]