28721198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{68711}}^1$

素因数の和:68743

約数の個数: 16

約数和(自身を含む): 49472640

約数和(自身を除く): 20751442

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 68711, 137422, 755821, 1305509, 1511642, 2611018, 14360599, 28721198]

約数ペア:

[(1, 28721198), (2, 14360599), (11, 2611018), (19, 1511642), (22, 1305509), (38, 755821), (209, 137422), (418, 68711)]