19891499

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 16

約数和(自身を含む): 21732480

約数和(自身を除く): 1840981

約数列:

[1, 19, 43, 97, 251, 817, 1843, 4171, 4769, 10793, 24347, 79249, 205067, 462593, 1046921, 19891499]

約数ペア:

[(1, 19891499), (19, 1046921), (43, 462593), (97, 205067), (251, 79249), (817, 24347), (1843, 10793), (4171, 4769)]