18639741

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{937}}^1$

素因数の和:1308

約数の個数: 16

約数和(自身を含む): 26264000

約数和(自身を除く): 7624259

約数列:

[1, 3, 19, 57, 349, 937, 1047, 2811, 6631, 17803, 19893, 53409, 327013, 981039, 6213247, 18639741]

約数ペア:

[(1, 18639741), (3, 6213247), (19, 981039), (57, 327013), (349, 53409), (937, 19893), (1047, 17803), (2811, 6631)]