19804004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23689}}^1$

素因数の和:23723

約数の個数: 24

約数和(自身を含む): 39799200

約数和(自身を除く): 19995196

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 23689, 47378, 94756, 260579, 450091, 521158, 900182, 1042316, 1800364, 4951001, 9902002, 19804004]

約数ペア:

[(1, 19804004), (2, 9902002), (4, 4951001), (11, 1800364), (19, 1042316), (22, 900182), (38, 521158), (44, 450091), (76, 260579), (209, 94756), (418, 47378), (836, 23689)]