19688921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4001}}^1$

素因数の和:4064

約数の個数: 16

約数和(自身を含む): 24332160

約数和(自身を除く): 4643239

約数列:

[1, 7, 19, 37, 133, 259, 703, 4001, 4921, 28007, 76019, 148037, 532133, 1036259, 2812703, 19688921]

約数ペア:

[(1, 19688921), (7, 2812703), (19, 1036259), (37, 532133), (133, 148037), (259, 76019), (703, 28007), (4001, 4921)]