19907516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1607}}^1$

素因数の和:1793

約数の個数: 24

約数和(自身を含む): 36919680

約数和(自身を除く): 17012164

約数列:

[1, 2, 4, 19, 38, 76, 163, 326, 652, 1607, 3097, 3214, 6194, 6428, 12388, 30533, 61066, 122132, 261941, 523882, 1047764, 4976879, 9953758, 19907516]

約数ペア:

[(1, 19907516), (2, 9953758), (4, 4976879), (19, 1047764), (38, 523882), (76, 261941), (163, 122132), (326, 61066), (652, 30533), (1607, 12388), (3097, 6428), (3214, 6194)]