19445488

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{997}}^1$

素因数の和:1081

約数の個数: 40

約数和(自身を含む): 40095648

約数和(自身を除く): 20650160

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 997, 1219, 1994, 2438, 3988, 4876, 7976, 9752, 15952, 19504, 22931, 45862, 52841, 91724, 105682, 183448, 211364, 366896, 422728, 845456, 1215343, 2430686, 4861372, 9722744, 19445488]

約数ペア:

[(1, 19445488), (2, 9722744), (4, 4861372), (8, 2430686), (16, 1215343), (23, 845456), (46, 422728), (53, 366896), (92, 211364), (106, 183448), (184, 105682), (212, 91724), (368, 52841), (424, 45862), (848, 22931), (997, 19504), (1219, 15952), (1994, 9752), (2438, 7976), (3988, 4876)]